I have a Maxtor 6Y080LO. It is an 80GB 7200rpm 8mb cache. It regularly makes a loud CLICK sound. For example, if I open up MS word, ka-*****. Open exel, Ka-*****. CLose word, ka-*****. I run the software provided by maxtor to test the HD and it says the drive has no errors. I spoke with Maxtor and they said it sounds like a failed HD, so they replaced it. Now I have a new one, and the exact same problem. Any ideas? Should I get it replaced again? Thanks in advance.