I have a Seagate Goflex external drive that is clicking. It shows up in device manager but not in "My Computer", it only shows up as a local drive and won't open. I was told to open it up and run it internally but I don't think that will resolve the issue. Any advice much appreciated. My other question is what if I buy the same external drive off Ebay, can I exchange the platters to fix it? Thanks.