I have the ViP722 running software ver L617 and twice in the last 3 days I have lost all 3 sats, 119, 110, 129. Both times occured in the evening after watching a DVR show (of course I work all day so i wouldn't know if it quit during the day or not). Once the show ended and I came back to a sat station, nothing but searching for signal. Both times I did a reset to no avail. When I did a Check Switch, it gave me a warning about missing satellites and the channel line up could change if a saved, which i did not. On the System Info screen it would show all 3 sats in red. All signals are good, 60s and 70s. Not a weather issue. One other thing occured tonight, during a DVR show, the unit reset on it's own. I called Dish tech support and they had scheduled a service call, but when I was about to hang up, all sats came back up and everything is working fine again. Any ideas?