Yes, the LD_PRELOAD has to point to the file.
The messages you get are just debugging hints that could help in case of
problems, you can get rid of them
either by suppressing the code that generates them in the program and then
recompiling and reinstalling, or
by error redirection.
The write errors are symptoms of one of the reasons of Adobe original
plugin's misbehavior.
The "cannot understand..." message is just wrong, a non-impacting error I
fixed in the last release I posted
earlier today in the board. This last version is also easier to install and
manage.
Happy to know it helped you.

2011/12/3 cement_head <email address hidden>

> Okay,  it works!
>
> But, do you mean
>
> # Adobe Acroread Zombie Workaround
> export LD_PRELOAD=/usr/local/bin/acroread_exec_monitor.so
>
> in the .bashrc script?  WITHOUT the space between the path (export
> LD_PRELOAD=/usr/local/bin/) and the file?
>
> Also, I get this from running from terminal:
>
> PID=31011  acroread_interceptor.c:198    write error
> PID=31011  acroread_interceptor.c:198      error is: 'Bad address'
> PID=31011  acroread_interceptor.c:254    cannot understand '400 : Acroread
> Quitting'
> PID=31011  acroread_interceptor.c:198    write error
> PID=31011  acroread_interceptor.c:198      error is: 'Bad address'
>
> When I quit the tab with the PDF open in it - is this okay?
>
> Thanks,
> CH
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/571247
>
> Title:
>  acroread remains zombie, so pdfs won't be rendered anymore
>
> Status in Compatibility plugin for Netscape 4 (NPAPI) plugins:
>  Confirmed
> Status in “acroread” package in Ubuntu:
>  Confirmed
>
> Bug description:
>  Binary package hint: acroread
>
>  When I have to read more than 1 pdf (not only at the same time in
>  different tabs) with the adobe reader acroread firefox plugin, I get
>  some strange screens (white, black or anything non-readable).
>
>  In Konsole (sorry for error logs length, I'm not able to sort these
>  repetitive lines) :
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_get_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_hide: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GtkObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-CRITICAL **: g_object_set_data:
>  assertion `G_IS_OBJECT (object)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): GLib-GObject-WARNING **: invalid uninstantiatable
>  type `(null)' in cast to `GObject'
>
>  (acroread:21141): GLib-GObject-WARNING **: instance of invalid non-
>  instantiatable type `(null)'
>
>  (acroread:21141): GLib-GObject-CRITICAL **:
>  g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
>  (instance)' failed
>
>  (acroread:21141): Gtk-CRITICAL **: gtk_widget_destroy: assertion
>  `GTK_IS_WIDGET (widget)' failed
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/nspluginwrapper/+bug/571247/+subscriptions
>