Well, the sony repair man was at my house today for 3 hours and he replaced the wholetop of my laptop and a new motherboard and the computer still wont work. He said he call them and ask for another motherboard. This is rediculous its been over a week and they still havent found the problem. Shouldnt they give me another one? I told the guy my imac has never givven me a problem and he said in his whole career he has worked on two macs and they were because a student dropped one and another student spiltwater on one. Note he a repair man contracted by sony and does not do exclusive sony work.