Comment 2 for bug 454527

I got the same results on Mac OS X Tiger; the password field has focus whilst there is no correct focus on both Gnome/Metacity and Gnome/Compiz.

Do you accidentally have WindowMaker installed on your Linux deployment to test? If that also does not work, we know the bug is caused by something else such as a bug in the Tk toolkit that only exists on Linux for whatever reason.