I've seen the same bug. Hope the attached actually is the backtrace you want
** Attachment added: "_usr_bin_users-admin.1000.crash" https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/1185396/+attachment/3876526/+files/_usr_bin_users-admin.1000.crash -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-system-tools in Ubuntu. https://bugs.launchpad.net/bugs/1185396 Title: users-admin crashed with SIGSEGV in gst_user_profiles_get_for_user() Status in “gnome-system-tools” package in Ubuntu: Incomplete Bug description: Running testcase Desktop (Xubuntu) in Xubuntu Desktop i386 for Saucy Daily During New user test gnome-system-tools 3.0.0-2ubuntu2 crashed. Steps made during the test: Go to Applications -> Settings Manager -> Users and Groups and add a new user ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: gnome-system-tools 3.0.0-2ubuntu2 ProcVersionSignature: Ubuntu 3.9.0-2.7-generic 3.9.3 Uname: Linux 3.9.0-2-generic i686 ApportVersion: 2.10.2-0ubuntu1 Architecture: i386 Date: Wed May 29 12:49:11 2013 InstallationDate: Installed on 2013-05-28 (0 days ago) InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130527) MarkForUpload: True SourcePackage: gnome-system-tools UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/1185396/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp