hi. I've got an old imac G3 running 9.2. and someone made a new account, didn't make it an admin and didn't turn on the log in screen.So every time it turns on it goes onto this other account and i can't access anything on the main account, does anyone know how i can turn on the log in screen without being admin or get onto the admin account or anything to fix this? i don't want to loose however many days of music on there as we don't have half the CD's anymore. and for...