Add me to the list as well. Amd64 10.10, Compiz and Nvidia drivers. Menus and drop downs randomly don't display on first activation unless you move the pointer over the screen area where the menu should be and then it appears, subsequent activations work as expected.
I have seen the problem as far back as 9.04 (Amd64, Compiz & Nvidia), although mainly with the Firefox 'awsome bar' occasionally not showing matching previous entries as I type a URL. If I clicked outside firefox and then back to it the problem goes away for a while, I still get this occasionally today on 10.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/665546 Title: Drop and sub menus don't always show up -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs