PROBLEM: I start it up my Powerbook and I get screen activity for about 1 second (see videos) and then it goes dim. You can still (barely) see the display. STEPS TAKEN: Connected external monitor, pressed F7 Repairing disk from PowerMac G5 failed in Target Disk mode. Reset PRAM. Tried starting up from disk. http://youtube.com/watch?v=p_FshjTI3Mk http://www.youtube.com/watch?v=pFaFP7L4x-w http://www.youtube.com/v/U3BayWUWGRg The screen fickers and goes to almost nothing... What is wrong with my PB?