I have just brought a apple G4 powerbook off a mutal friend who has moved to australia,my nightmare has started. Problem one is he did not format the harddrive as he promied Problem two is now i can't log in to the system because i don't know his password and i am having diffuculties contacting him. Problem three is i have tried booting from os 9.2 and a error type 11 comes up during set-up telling me to restart the machine with extentions off which i did to no avail. Problem four is i tried booting from os 10.2 and it just crash's with white horizontal lines or just tell's me to re-start in four languages. I have tried zapping the pram , resetting it , taking out one of my memory sticks still !!!!!!!!!! to avail,and top of this i tried connecting it up to another mac via firewire and deleted the whole hd and still i get the same problems. can anyone tell me what the problem could be ? or how i can recover my hd and maybe through firewire mode delete the file containing the start-up passwords I need help despertly as i really want it to run. please please please help me help me help me, apple have not been very usefull apart from telling me it is most probably a hardware issue and that starts at a flat rate of £300 which i have not got after spending £800 buying it , can any users come to the rescue ??????????