Comment 8 for bug 282403

I think this has to do with the fact that in Ibex normal users are not supposed to be able to shut down the computer when other users are logged in. Try shutting down fro the system menu, for example. Except, after you get dumped back to GDM by trying to shutdown using the switcher applet you can shutdown the computer from there without any permissions or dialog boxes. This seems to be a fundamental issue with controlling when the computer can be shutdown because could always get back to GDM by logging out.