I just acquired a free PowerBook G4. I was told it was having some problems; one being the PRAM battery was bad. When I try to boot the PowerBook it does the Question mark folder and wont boot. Things I have tried are: I tried booking it while holding the option button and it only have a Arrow shaped in a circle (Think its refresh) and a arrow ->. There is no text or other pictures on the screen and the -> arrow does nothing. So im thinking it cant read the hard drive. I put a friends OSX dvd and tried to boot from that but it starts spinning the dvd but never boots to the dvd. I'v tried to to hold C, Option (doesn't show the dvd just the refresh arrow and ->) I have taken the laptop apart and everything is plugged in. While this is a free laptop I didn't want to put too much money in it so I was trying to see where I should start. Would a dead PRAM Cause these issues? Should I start with buying a new hard drive? Even with a dead hard drive shouldnt it still boot from the dvd? Does that mean I need a new hard drive and cd/dvd reader? I was also thinking about sending it to Powerbook Medic but if its just a hard drive I could change that. Thank you for helping me trouble shoot this machine!