Just a quick FYI, When you add memory, you should pair it... i.e. if your machine came with 1 pr of 1 gig memory cards, you either need to add another pair of 1 gig memory cards (if memory slots available) or remove existing pair of 1 gig and replace with a pair of 2 gig memory cards. Memory should be balanced.... You shouldn't add a 2 gig stick by itself...