I have no idea what to do here. I am a new mac user, but i can figure things out pretty quick. The OS will freeze for 30 seconds at most (or entirely) and the Hdd will make strange noises like it is working realy hard like it can't find something or whatever. I reset my Pram, unplugged everything and let it sit for 15 seconds, and disk utility. Found some permission problems, but fixed them. It still Freezes. It is a PPC imac 2 Ghz 1.5 gigs of ram. The hdd is relatively new. 200 gigs. so i am at the end of my rope here. Is my Hdd going bad? is this fixable? thanx in advance.