users-admin crashed with signal 5 in do_pre_parse_initialization()

[Removed by request]

users-admin doesn't start with following error:
Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: gnome-system-tools 2.32.0-0ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-7.9-generic 3.0.0
Uname: Linux 3.0.0-7-generic i686
Architecture: i386
Date: Wed Aug 3 20:07:45 2011
ExecutablePath: /usr/bin/users-admin
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
ProcCmdline: users-admin
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=ru_RU.UTF-8
Signal: 5
SourcePackage: gnome-system-tools
StacktraceTop:
 do_pre_parse_initialization (context=0x86d7968, group=0x86da480, data=0x86d7998, error=0xbffb13fc) at /build/buildd/gtk+2.0-2.24.5/gtk/gtkmain.c:676
 pre_parse_hook (context=0x86d7968, group=0x86da480, data=0x86d7998, error=0xbffb13fc) at /build/buildd/gtk+2.0-2.24.5/gtk/gtkmain.c:787
 g_option_context_parse (context=0x86d7968, argc=0xbffb1484, argv=0xbffb1488, error=0xbffb13fc) at /build/buildd/glib2.0-2.29.14/./glib/goption.c:1773
 IA__gtk_parse_args (argc=0xbffb1484, argv=0xbffb1488) at /build/buildd/gtk+2.0-2.24.5/gtk/gtkmain.c:958
 IA__gtk_init_check (argc=0xbffb1484, argv=0xbffb1488) at /build/buildd/gtk+2.0-2.24.5/gtk/gtkmain.c:994
Title: users-admin crashed with signal 5 in do_pre_parse_initialization()
UpgradeStatus: Upgraded to oneiric on 2011-08-03 (0 days ago)
UserGroups: adm admin cdrom dialout disk kmem lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #804651, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.