This upload fixes the bug:

 gnome-session (2.19.2-0ubuntu1) gutsy; urgency=low
 .
   * New upstream version:
     Session Manager
     - Use g_usleep() instead of usleep()
     - Don't hardcode start of assistive technologies software
     - Fix splash screen in RTL environments
     - Improve splash screen on old displays
     - Make it possible to use a shaped window for the splash screen
     - Display the name of the started application in splash screen even if
       there's no icon
     - Don't use deprecated functions
     - Don't hardcode esound for the sound daemon
     - Make the fade on logout faster
     - Plug leaks
     - Warn the user if he logs in as root
     - Warn the user if the clock is totally wrong and let him launch a
       config tool
     - Change strings about saving the session to be more user-friendly
     - Remove workaround that chrooted esd to / (fixed in esd)
     - Make it possible to save a session with multiple clients that are the
       same program
     - Use the new socket path for GDM
     Session Properties Dialog
     - Use Add/Remove instead of New/Delete for handling startup programs
     - Show the comments in the startup programs list (Ubuntu: #102362)
     - Change strings about saving the session to be more user-friendly
     - Make it possible to sort the program lists by clicking on the headers
     - Create a non-localized version of the Comment field in .desktop files
       if necessary
     Misc
     - Remove xrdb check
     - Build fixes
     - Require glib 2.12.0
     - Add --with-time-utility configure flag to set the executable that is
       used to configure the time of the computer
     - Don't require libgnome-desktop anymore
     - Add support for beryl in gnome-wm
   * Sync with Debian
   * Renamed some patches to use .patch instead of .diff
   * debian/control.in:
     - Build-Depends on sharutils
     - don't Build-Depends on sng
     - don't Recommends desktop-base
     - gnome-session Depends on gnome-power-manager
     - maintainer is the Ubuntu Desktop Team
     - Suggests gnome-user-guide | gnome2-user-guide
   * debian/gconf-defaults:
     - don't set the default from it, ubuntu-artwork does that now
   * debian/gnome-session.install:
     - don't install the debian splash
   * debian/gnome-wm:
     - dropped, use and patch the upstream version instead
   * debian/patches/02_no_warning_crash.patch:
     - don't crash on warning, users expect stability
   * debian/patches/03_powermanagement.patch:
     - powermanagement features.
   * debian/patches/09_splash_hide.patch:
     - fix some issue with splashscreen staying on screen when not needed.
   * debian/patches/10_update_notifier:
     - added update-notifier to the list of known applications
       (closes ubuntu #9316)
   * debian/patches/11_session_dialog.patch:
     - new session dialog by Manu Cornet <email address hidden>
   * debian/patches/19_gnome-wm-tweaking.patch:
     - set the current wm to gconf and get the default one from gconf
     - use the x-terminal-emulator instead of xterm for gnome-wm
   * debian/patches/20_dont_fade_on_ltsp_client.patch:
     - patch by Oliver Grawert <email address hidden>,don't use fading on ltsp client
   * debian/patches/21_dont_grab_when_composited.patch
     - don't grab the display when a compositing manager is running
   * debian/pixmaps:
     - icons for the new dialog, by Manu Cornet <email address hidden>
   * debian/rules:
     - don't use sng
     - install the icons for the new dialog