I, too, had this problem but it went away when disabling the "Legacy Fullscreen Support" in CompizConfig Settings Manager:
# ccsm -> Workarounds -> Legacy Fullscreen Support (Gutsy on amd64) -- [gutsy] Fullscreen does not work https://bugs.launchpad.net/bugs/159631 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs