OK, I bought this computer specifically because I hate PC's and the way they freeze, get blue screens etc etc. I have never had a problem with my girlfriend's Macbook. It is probably about 3 months old at most. About a week ago I was working on a paper and the screen just went white. I waited about 5 min, nothing. I cmd alt esc'd and couldn't pull anything up. I ended up having to restart. Well this morning, of course I am working on something else important and the screen goes dark, not off, but like grey, you could see the screen was on. Keyboard was lit etc. Again there was nothing I could do and it resulted in me having to restart. This is unacceptable, I cannot have a computer do this obviously, nobody wants this to happen. I know mac's cant get virus's but is there something along those lines thats causing this? What else can I look at?