Currently, I am running a March 2010 13 inch Macbook Pro (10.6.8) that has a dual boot Win 7 32bit installed. I've been able to run Win 7 for almost a year now, but recently, when I turn my computer off, and turn it back on, it will freeze on a black screen when I choose Windows as my OS. No animation, nothing.
I am not sure what to do next, but not being able to run Windows is very frustrating.