Around the first of July, i purchased a HDTv and a h20 reciever. i have 3 other regular recievers in the house. I already had a 3 lmb and connected the new Hd reciever, it worked fine, but couldn't pick up any HD channels because of where my dish was setting. I has a directv installer come out to move the dish, which was about 3 years old. Instead of just moving the dish, he moved the dish and put up a new 3 lmb dish. After that I picked up the HD channels fine, but it caused other problems. At certain times during the day, especially at night Channels 243 through about 300 becomes broken up. It can last for a few seconds or 30 minutes or more. The odd transponders on the dish are going up and down in strength when this is happening, however all the old recievers in the house are fine. Had the installer come back out ran new cable from the dish to the recevier, but no good. Got a new receiver from DTV, but still have the same problem. Have switched cables coming out of the dish with cables going to one of the old reciever, but still no help. I don't know what to do next. i was not having this problem before the first installer came out. The installer is coming back and change out the dish i think, but I don't have much hope. i am about ready to take receiver and tv back to the store. WHAT CAN BE THE PROBLEM??? It is about 50 to 60 feet from dish to reciever.