Comment 4 for bug 786494

Whatever it was, I'm not getting the libranberra error anymore after installing it, but it still doesn't start:

andrei@andrei-desktop:~$ sysmonster
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: specified class size for type `PyGtkGenericCellRenderer' is smaller than the parent type's `GtkCellRenderer' class size
  from gtk import _gtk
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed
  from gtk import _gtk
/usr/lib/pymodules/python2.7/gtk-2.0/gtk/__init__.py:40: Warning: g_ascii_strncasecmp: assertion `s2 != NULL' failed
  from gtk import _gtk
Segmentation fault

This occurs on two computers running Ubuntu 11.04 32bit.