> What's a mobo battery? No replacement of any battery that I know > of. Reset didn't work. It's a reference to a battery on the logic board that provides a small amount of power for essential systems. I don't believe the G4 Powerbooks have one -- they draw a small amount of current from the main battery, instead. BRIAN PEARCE <http://www.redjacketpress.com> "Yesterday's Books for Today's Reader"