I remembered what initially caused the problem on my original installation. The first time I saw the error was after downgrading totem (and totem-gstreamer) from 1.4.3-0ubuntu1 to 1.4.1-0ubuntu4. I did this because the totem browser plugin wasn't available for 1.4.3-0ubuntu1.
Re-upgrading totem and totem-gstreamer didn't fix it. Likewise, reversing the evince upgrade that caused it on this installation doesn't fix it either. -- update-schemas: Error writing file "/var/lib/gconf/defaults/%gconf-tree.xml.new": File exists https://launchpad.net/bugs/74699 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs