I have a PowerBook G4 1.5Ghz that has long been suffering from the infamous power issues that have plagued these machines. I have tried all of the recomended steps including PMU and PRAM resets. I have 3 different batteries and only one of them will "take a charge", meaning that I don't get the (Not Charging) message on the battery indicator. I took it to a retail store and the not so genius "Genius" thinks something is loose on the logic board, $350 repair charge. For some reason this seem like a logical diagnosis. Anyone have any other thoughts on how I could address? Just trying to get this machine in working order to sell, I have a new MBP that replaced this machine. Powerbook G4 1.5Ghz processor running Leopard.