The Hard Drive on my Roamio began making a clicking sound a few weeks ago. I didn't think much of it at the time. Recently, the picture on the Roamio has become unwatchable. Heavily pixelated. I swapped out the Roamio with the old Series 3, and the picture is fine. I've also called FIOS, and they insist the signal strength is not a problem. I bought the Roamio back in December. I'm hoping the device is still under warranty. Anyone else had issues with Roamio hard drives? W.