For the last few months my HR22 has been having pixelation issues often. The fix is to press the reset button but a day or too later I have to reset it again because the pixelation comes back. I have to keep resetting every 2-3 days. I have 2 other DirecTV receivers that do not have this issue so I know it's not a satellite alignment problem or something blocking the signal. The only thing I can think of is that maybe it's overheating. Would overheating cause this issue? The summers are hot where I live and the receiver is upstairs where the A/C is off during the day. It's inside an entertainment center so maybe not enough airflow. Is that the issue? What else could it be?