On my 722, When hitting DVR>TV Shows>Browse by Network I get "Networks:0", and a few seconds later, the receiver reboots. It doesn't happen as often, but it does happen every week, week and a half. It used to do it every day, but since Dish rolled out the last software update, it's only started happening recently. Very annoying, especially when both TV's are being used. It's definitely not my receiver, because my relatives are having the same problem too on their 722, and they just became customers about three weeks ago.