dear sir am very happy to buy your acer 5515 yesterday from BESTBUY-STORE IN FORT MYERS/FLORIDA.I want to know the use of the 3 cds attached to the box. and I,ve another question about an old acer laptop which has a damage in its dc plug for dc adaptor.is there any solution?another question what shall I do if I want to install windows xp in my new acer 5515, many thanks, saidescu