I have had my vip211k receiver for years. I bought a 500GB HDD for the receiver when I first got it. Later on I disconnected it for a larger 1tb HDD. I wanted to see what was still on the old HDD, so I hooked it up. It downloaded the guide and everything, but when I went to view what was on the HDD that I had recorded, I got a message that the HDD has to be re-formatted to work. Of course if I do that all of the old recordings will be deleted. I sure do not want to do that. Any way to fix the issue? Has anyone else had this issue? Thanks.