I have a macbook pro running snow leppard and dual booted with windows 7. Can anyone tell me how to diagnose my mac to see if i have a hardware problem. For some reason it crashes when I am running windows. It seems to happen when I am using IE 9. The screen will go black and will not respond. The keyboard is still lit but that is all. I have to hold start button to restart. I am a rookie at doing diagnostics. Would appreciate some advise.