This bug will be fixed, it's already being worked on. However, what you're describing is a completely different matter (problems with the NVidia driver + desktop-effects) and should be reported in a new bug.
-- Desktop-effect does not enable cube https://launchpad.net/bugs/89786 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
