There is an xorg backtrace in the comments and attachments of this bug report so it is surely not a casper bug - reassigning it to xorg.
** Tags added: workaround ** Package changed: casper (Ubuntu) => xorg (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/799238 Title: Xubuntu i386 and amd64 20110618 xserver abort To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/799238/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs