Hi, There is an online store called Crucial. Many of you know it. Actually, someone recommended it to me here. My 1.33 GHz. 12" ibook G4 came with 512 Mb of RAM. In two months it will be six years old : ) !!! I am thinking about updating the RAM (memory). According to specifications from Crucial's webpage, the ibook can handle up to a maximum memory of 1536 MB, or approx. 1.5 GB. I already have the original 512 MB. In order to add the other 1 GB. What should I do ?? Just buy the 1 GB and "insert it ??". Just another question, my ibook is "already" six years old, and I enjoy it a lot, and I hope it lives (with me) for a very, very long time : ) !!! If I add new RAM, do I run any risk that it may get "sick". I mean, I have never touched it in the inside, (except for a hard drive change done by an Apple certified technician). The only button I touch every morning is the start button. So, because of a RAM upgrade, I wouldn't like to "provoke an accident" and see my ibook die. Here is the link to Crucial for the ibook G4: http://www.crucial.com/store/listparts.aspx?model=iBook (G4 1.33GHz, 12-inch)&pl=Apple&cat=RAM Thank you very much in advance, very kind regards, igmolinav.