Hi, Tonight, I opened up Garageband, went into preferences to configure the audio for my peripheral audio device, and the computer and curser locked up, so I had to shut it down by pressing the power button for 4 seconds. I restarted the G4 and it would only boot up to a blue screen with the pointer curser, but would not finish loading anything on the desktop, no icons, no menu, nothing. I tried restarting repeatedly this way, but got the same result each time. Any thoughts on what could be wrong? Any way to correct this problem?