Rolling Picture - DirecTV DVR

#1
For Rolling Picture, relating to DirecTV DVRs and receivers. I recently bought an H20 receiver and AT9. After installing the new antenna, whenever selected to anything other than 4801, the picture begins rolling, higher the resolution, the faster the roll. I have reset, reinstalled, rechecked the setup, but no help. My older DVR works fine with the new dish. Any ideas???
 
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