I have 2 replaytv 5040's with lifetime activation. 1 has a 320gig hd and the other standard 40gig hd. Both were working well. I went out of town for a few days so powered down everything. When I booted back up upon returning, I noticed the 320gig hd was repeating itself approximately every 37 seconds. If you rewind and replay the double part, it would simply pixelate and move over that section. Since I have 2 5040's, I swapped the hard drives to see where the problem might be. The problem switched along with the 320gig hard drive, so it has to be that. Is there a way to fix the problem of doublespeak every 37 seconds (very irritating)? By the way, if I play previously recorded material, it plays fine. I can hear the hard drive working. Can you defrag a 5040 hd? By the way, I have powered down everything and attempted to repower several times. The problem remains. It also appears to pixelate more as time goes on.