Same here on Feisty up-to-date. Thomas, the problem with system-admin-users is with gksudo.
You should launch it from a terminal with: sudo dbus-launch application such as sudo dbus-launch gdmsetup Regards Pochu -- screen does not unlock after locking https://launchpad.net/bugs/76632 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
