going through crash report it indicates beagle as well. Attaching the crash file.
** Attachment added: "mono crash reported" http://librarian.launchpad.net/4928897/_usr_bin_mono.1000.crash -- Mono crashed (while Beagle had been running) https://launchpad.net/bugs/67083 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs