I wake up this morning and all of a sudden I get the 771 searching for signal message on all the local HD channels and most of the national HD channels. ESPN, HBO, and a few other HD channels come in just fine. Nothing has changed since yesterday. No bad weather, no trees blocking the dish, nothing. All the cables are still plugged in. I just got off the phone with D* and they are sending a technician on Tuesday. I was hoping some of the experts on here could help solve the problem before then.