Just two months ago, I purchased a 24" intel iMac. And it ran perfectly until about a week ago when applications started hanging (such as iTunes, Garageband, Final cut pro, and Adobe after effect). I wind up having to restart the computer over and over and over again. And that shouldn't happen with a near brand new iMac. I have a feeling it has something to do with the partition I have with windows using boot camp. I'm thinking on backing up the files I need (such as documents, music, and movies) and re installing Leopard with the discs they gave me. Is this a good idea? Should I do anything else? And if I do re install the operating system, should I know anything before hand?