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Hi, Thank you for writing. Yes, If I use those commands it will restart, but I have to use mac-boot to get it to boot into the GUI. Then the next time I shut down and start up I have the same problem. Not sure if it's a hardware (logic board?) problem or today I was wondering if it could be a...

I have a PowerBook G4 17" 1.33 GHZ machine running OSX 10.5.5 that's booting either with a black screen or into open firmware. Any idea how I can reflash the firmware and if so, where I can download the file? Thanks, Vincent