I had a similar problem here. The only mono app that was running that I knew of was Beagle, and I was not actively using it.
** Attachment added: "Crash dump" http://librarian.launchpad.net/5067442/_usr_bin_mono.1000.crash -- Mono crashed suddenly https://launchpad.net/bugs/71607 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
