So a family member of mine who is at college has SUDDENLY come across a very concerning problem with her 3 year old iBook ( dunno if it's G3 or G4) . The problem came about suddenly and basically without provocation. While she is in the process of typing up a term paper for college, the computer just shuts off without warning or cause. As a result, everything that is getting typed on, gets lost. The only thing we can POSSIBLY think of that MIGHT have something to do with it is that during christmas break a few months back, another family member upgraded her RAM for her. Possibly loose connection or something? Bad battery? She did have to replace the charger plug this year as the old one got bent right where it inserts into the plug on the computer ( thanks to poor planning on apples part) and I think it even smoked at one point. Obviously not good either way. Apple seems to be lackadaisical on their part with addressing this problem and she did not get apple care as far as we know. Besides, it would have expired even if she did. Has anyone come across this situation before? Many thanks!!