I have 5 DirecTV HD DVRs and have 1 RF remote for each. I've used them all on RF for several years (except for the HR24 which is only a few months old.) On the HR25-500, I have a problem that recently started that when I press a remote button, the receiver will rapidly repeat the command infinitely. Eg: Press up (once) on the guide and it will scroll up until you press down (just once) then it will "repeat" (scroll) down as if you're holding the remote key. It's kind of odd. No matter which key you press, the DVR will repeat that command forever. Initially I suspected dead batteries, replaced them. Then the remote, so I paired a brand new remote with the receiver, and even another known good one. Same problem with 3 different RF remotes. Then I tried something, press up (once) then immediately pulled out the batteries, yet the receiver continued to execute "up". So the issue isn't a bad remote, it's the DVR. When I switch the HR24 over to IR and use an IR remote it works just fine (which is the way I'm forced to use it now.) I had this problem for about a week, gave up and switched to IR. I say a week because every day for about a week I'd try switching back to RF only to return to IR until I finally gave up and just used it on IR with a repeater. Weeks later I tried RF again and it was fine, no problem, so used it with RF from then on for about a month. Tonight it just started doing it again. I've tried rebooting and power cycling the box. I'm out of things to try. Thought maybe it was a software bug that got fixed, but the problem returned tonight (and won't go away) after not being present for a good month or so. I've searched and haven't found anyone else complaining about this problem so I think it's pretty unique to me. Do you think I have a "defective" HDDVR? Could it be RF interference from something else possibly? Anyone have any suggestions? I should add that the HR24 and 3 other HDDVRs (all 4) are all on the same rack in one room which is one reason I use RF. One HR22 is in another room. Thanks for your time.