Thank you for reply. I'm using version 6.5.1+cvs20060824 of libgl1-mesa-dri. I believe this version was installed as a dependency to compiz
I removed compiz, and upgrade passed successfully -- Can't upgrade from development version of EdgyEft Can't install 'ubuntu-desktop' https://launchpad.net/bugs/67705 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
