Same problem. Several weeks ago I had the same thing happen so I had Dish send me a replacement 622 and a service call. A Dish installer/repairman visited and told me to send the replacemnt 622 back as it was just a software issue. I did and guess what happened? I had the same thing happen just before the pay per view fight Saturday night. The picture just blacked out and from that moment on the 622 tried to reset itself over and over again. I suspect it is fried because the next day when I plugged it in and went through the reset, it came on for a moment and then went to black screen again. So now I await a replacement 622. I suspect a heat problem: the counters read a high of 138 and an average of 116 for the one that is fried. But who knows for sure?