UGH.. ok i'm back with more issues with the same macbook. My friend has been using it a bit longer after an archive&install of leopard and she told me it's been shutting off by itself randomly -- even when it was plugged in and either sitting idle or with itunes playing. What would cause this??? Is it Leopard, or the hardware?? NOTE: I'm not sure if it means anything but everytime leopard starts up a folder with a question mark flashes on the screen, but then everything loads properly.