Hi, I have an 14" iBook, 1.07 GHz and it won't use battery power. As soon as I unplug it it turns off. It worked fine until I opened it up and swapped in a DVD-RW and a new hard drive (the old one was failing). In the power section of system profiler it shows 98 load cycles and about a 75% remaining capacity. It may or may not be charging - I can't tell. The battery says it's fully charged at 95% and I have no way to drain it and see if it will recharge because the computer won't drink from the battery. I had another 14" iBook battery laying around that I thought worked, but now when I put it in this computer it just sits at 0% then eventually says the battery is dead (the menu icon shows an X through it). What I'm wondering if anyone can tell me is, is there a chance htis is a software problem, and if not, assuming it's not a problem with the battery, what do I need to replace to get this computer to drink and possibly recharge battery power again? I've tried resetting the PMU. That is it. Thank you for your help.