Hey guys, thanks in advance for any replies. While I'm using my 700mhz 17" falt panel imac, once and a while I'll hear what sounds like a spinning sound and then a click. And while the "spinning" noise is happening my computer freezed for that second or two. It's really quite annoying. This happend a couple months ago for a day or so and then stopped until now. I'm thinking it's my harddrive but I'm not sure. Any suggestions?? Thanks again!