I installed snow leopard about 2 weeks ago. Since then my computer has not been doing well. iTunes won't open at all. This stop working for a few mins and then work again, such as safari and other programs. I haven't had time to diagnose the problem until this morning. I tried running disk utility but that wouldn't open. So I used onyx to do some repairs. Problems persisted so I tried to open disk utility again. This time it did open and it showed that my main HD is "failing". Not failed... but failing. I didn't know a hard drive could be on the verge of failure. I thought it would work, then die, no inbetween. Since the HD has worked flawlessly until I installed snow leopard, I'm wondering if this could be a software problem? Or if there is a possibility that snow leopard caused this. I'm backing up that computer right now and I guess I'll have to get a new hard drive to solve this. Unless I can find any other suggestions here.