This bug: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/432492 mentioned reinstalling GDM and this worked for me on the latest Karmic:
$ sudo dpkg-reconfigure gdm Seems to still come back occasionally though. The problem started after I started working on getting jack & pulseaudio going with a firewire soundcard using some of the ubuntu studio packages. -- There is a problem with the configuration server. (/usr/lib/libgconf2-4/gconf-sanity-check-2 exited with status 256) https://bugs.launchpad.net/bugs/269215 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs