Software Sources crashes on start-up

[Glen Svensson]

Just updated to Intrepid and now Software Sources crashes on start-up

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/bin/software-properties-gtk
InterpreterPath: /usr/bin/python2.5
Package: software-properties-gtk 0.65ubuntu1
PackageArchitecture: all
ProcAttrCurrent: unconfined
ProcCmdline: /usr/bin/python /usr/bin/software-properties-gtk
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/software-properties-gtk']
SourcePackage: software-properties
Title: software-properties-gtk crashed with SystemError in <module>()
Traceback:
 Traceback (most recent call last):
   File "/usr/bin/software-properties-gtk", line 35, in <module>
     gtk.gdk.threads_init()
 SystemError: error return without exception set
Uname: Linux 2.6.27-2-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy plugdev sambashare scanner