Could you please try after startup making an empty selection on the desktop bakckground, and try it afterwards? I have the same issues, and this workaround solved the problem in all cases, so if it solves it for you, than this might be a duplicate bug.
** Changed in: ubuntu Status: New => Incomplete ** Package changed: ubuntu => unity (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/695763 Title: No drop-down menus anywhere in natty alpha -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs