I have an iBook G4 which I bought a few years ago that will not boot for me anymore. When I turn it on it will load the folder with the question mark. I have searched the internet for hours and tried everything with it. I don't have the CD because I bought the laptop on ebay though. I think the problem is with the battery though, but I wanted to get some input before i spent 100 dollars on a new battery. I almost always have kept my laptop plugged into the AC adapter, so over the two years I have had it is has lost a lot of charge on the battery. It got to the point near the end where if I even unplugged the AC adapter my laptop would die. Then it got to the point where it started booting to the question mark, and after a few tries it would boot to the operating system. Now I can't even get it to boot to the operating system at all. All I want to do is get my data off the laptop with an external hard drive so I just want to get it started one time, and that is a lot to spend 100 dollars on, so if anyone has any alternatives please share them with me! I really appreciate it.