A couple months ago, my 722k started occassionally giving me a 'partial signal loss' message (with the obligatory solutions: check line of site, check cable, check connections, unplug receiver for a few seconds and restart-etc). It's becoming more & more frequent. I've found that by hitting either the 'guide' or 'menu' buttons on the remote and then cancel, the problem clears up. Sometimes it clears for days, sometime only a couple minutes. I have found it seems to happen most often when I'm watching a program from Sat 129, and when I've checked signal strength when it happens it's usually in the mid to upper 50's. My receiver is in the open with an external fan drawing air out (average hd temp seems to be about 105) My 211k in the bedroom, connected to the same dish/lnbs has not had this problem. AND there is absolutely nothing near the dish that could be blocking any of the signal Anyone else have this happen? Did you come up with a fix?