I'm not see anything immediately indicative of what the problem may be. Could you please post your '/var/log/messages' or '/var/log/messages.0' file (which contains information about the crash) after a crash?
-- Entire system locks up, Ctrl-Alt-Backspace doesn't work, etc. https://launchpad.net/bugs/91305 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
