I can confirm thus bug "Failure loading - preferences.menu", both a clean Feisty install and with a fully patched Feisty (from Herd 1 on).
-- [feisty] gnome-main-menu start a not working control-center https://launchpad.net/bugs/83387 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
