I just ordered a 256MB stick of RAM for my new ibook and it turns out that apple uses a special PC2100 SODIMM that is 32x32 or something, and didn't mention it anywhere. Its frustrating when they specify PC2100 SODIMM and I buy it and it doesn't work, because then I had to return it and my store has seemed to have dropped of the face of the earth (going from 100% ebay feedback to about 50% and not returning phone calls on his answering machine). I NEED more RAM, so instead of trying to get my money back from that store I am just going to accept my 40 dollar loss and start over. Where is the cheapest place to buy iBook specific RAM seeing that ibooks need a special kind of it. I am surprised on how my new 1.07GHZ ibook is slower than my 733MHZ G4 just because of the RAM difference.