I have an iMac G4 with Leopard, and there seems to be a glitch with my System Preferences. I can lock and password protect all of the panes available as I would normally. I have however discovered an issue. These locks seem to unlock themselves after powering back on. I'm not sure if the same happens upon logging back in, as I never log out to start with. Any solutions for this? Better yet, am I the only one who experiences this?