Clicking sounds equal certain death in hard drives, doesn't matter if it's IBM, WD, Maxtor, Quantum, etc. If you have anything important on that drive, you should think about backing it up, or transferring it onto another drive soon. The drive will probably continue to operate normally, but it is always better to err on the side of caution. BTW, I have a 40GB IBM 60GXP 7200RPM drive, and it works great! No clicking sounds at all. In fact, I've never even heard a peep from this drive. It's really very quiet.