I have a late 2009 MBP with bootcamp. It has both windows xp partition and mac osx. Everything has been fine and I was able to boot into either partition perfectly until today. When I tried to boot into osx, I would get into the usual grey screen with apple logo on it, then a circle with a diagonal slash on it would appear. It would boot into the windows partition automatically after that happened. I tried holding "option" key and choose the mac partition but the same thing happens. What can I do to recover it? I really don't think I have done anything that changes the mac setting. I would hope to settle this without restore disc because I didnt have one now (left at home).Thanks for your help!