I posted about a bunch of issues I was having with my hard drive. I concluded that it was finally dead. It is a WD cavier black 750gb drive. I ordered a new drive but have not had time to install it so the drive is still in the computer. I am booting off an old IDE drive I have mounted in a removable rack. Anyway, it happened about 2 weeks ago. I just booted up the computer and all of a sudden the drive is back as if nothing had happened. I looked around and all the data seems intact. The two partitions are intact etc. So what ups up with the drive? I am about to run WD diagnostics on the drive.