hello macmen and women, i have a little problem. im pretty new to mac and my pm g4 just wont boot. it stays on the apple loading screen and wont go any further. i tried the restore disk and i can boot from the dvd drive. 1 way i tried to get it to work was: starting it up again, after the "bong" i held on o, f, apple command, and alt. i restet preferences and i did the other thing it told me to do. another way i tried to get it to work was by: starting it up again...holding on alt and s key until it brought me up to the screen were i can modify the files( the Black and White screen.) there were no files needed for repair so i stopped that. are you following me? well how do i get it to work?