Recently replaced the Other Half's Macbook 13" Late 2008 with a Groupon-purchased Macbook 13" Late 2009. Was hoping somebody here would have a short and simple answer for a quick ram question. She upgraded the original 1gb RAM in her old machine to 2gb. Need to open it up an check if its a 1x 2gb card or 2x 1gb cards, but in either case assuming the new macbook has 1x 2gb card from the factory am I able to plug one of the old RAM cards into the new machine to add RAM? Used to be somewhat into computers and built my share but pretty ignorant about Mac's. Thanks!