Hello, I'm using a 17" Macbook Pro, with both OSX and Windows running on it. Recently I am having trouble booting into OSX. it just seems stuck at the grey screen with the apple logo and the circular loading icon. This only started occuring after I was working in my Windows 7 bootcamp parition and got BSOD. Ironically I can still boot into my bootcamp parition fine however. I tried using the disk utility to repair the OSX drive, and found no problems. Still stuck at the grey screen when I try to boot into OSX however. I am thinking about just reinstalling OSX, as I have everything I need backed up anyway.