It seems I experienced the same problem: mono crashes after logging in on Ubuntu 6.10 edgy. I'm running beagle. Attached is the complete crash report generated.
** Attachment added: "Crash report" http://librarian.launchpad.net/5910381/_usr_bin_mono.1000.crash -- /tmp/_usr_bin_mono.e-FUrt.crash https://launchpad.net/bugs/78995 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs