Thank you taking the time to report this bug and helping to make Ubuntu better.
However, processing the crash report to get detailed information for the
developers failed as the retracer did not generate a useful symbolic stack
trace.
Please try to obtain a backtrace manually following the
** Attachment added: CoreDump.gz
http://launchpadlibrarian.net/51884920/CoreDump.gz
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/51884921/Dependencies.txt
** Attachment added: GConfNonDefault.txt
http://launchpadlibrarian.net/51884922/GConfNonDefault.txt
**
