Mi powerbook g4 wont boot. I just erase and reinstal mac osx, reset NVRam, and use disk utilities to repair HD. But nothing seams to work and in fact i belive it came out worts. The sytems works perfect in safe mode, but in normal mode it just stay in a blue screen, the fan continue to work but nothing else happens. I reallyneed help because no mac service will be available for some days and I am in desperate need to work on my laptop.