This is happening to me too. To workaround I use compiz --replace from a terminal. I can confirm that OpenOffice.org is causing this issue.
-- Compiz crashes randomly on Natty https://bugs.launchpad.net/bugs/675154 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