Right, so what happens is you saved your session in karmic and that saved "compiz.real" as a program to run in your session. In lucid compiz.real doesn't exist so gnome-session tries to start it and fails. Ideally gnome-session would then just start the default WM ("compiz") but it does not. That's why a workaround is to either remove your saved session file or get compiz running then save your session again.
-- [regression-release] Compiz fails to decorate windows after upgrade https://bugs.launchpad.net/bugs/572617 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