This sounds like a combination of bugs. "Get Help Online" and "Translate This Application" are in launchpad-integration, but the others may well be elsewhere and would need to be separate bug reports once investigated.
-- Choose editable menu accelerators,some menu items aren't editable https://launchpad.net/bugs/55569 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
