Also encountered this problem and had to use ALT+F1 to make the main menu bar appear long enough to allow me to uncheck the "auto-hide" option. Luckily I use Docky and knew how to launch programs without the menu bar -- for novice users this is indeed a very problematic bug.
-- panel and menubar disappeared on checking autohide and never comes back https://bugs.launchpad.net/bugs/485589 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-panel in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs