Starting sometime last week my HR22-100 started getting choppy and blocking when watching a recorded program or using the buffer on live TV. The problem looks similar to rain fade, but when watching the program live there is no issue. It only happens when I rewind live TV or record it and play it back, and it happens on both SWM tuners. None of my other DVRs are experiencing this problem. I've tried RBR and the system test in the setup menu with no luck. Recordings before March 16th playback with no problems. Does anyone have any suggestions? System info: HR22-100 0x457, Feb 17th SWM Thank you!