After some more digging. It only occurs when the install is Kubuntu, and the gnome-desktop is installed at a later date!
Use the Kubuntu desktop, no problem. Use the Gnome desktop (from the Kubuntu install) and the problem occurs. -- Open a document by right clicking, lose menu buttons https://launchpad.net/bugs/69618 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
