I had an 811 receiver for 8 months working flawlessly with rabbit ears for locals. Then one day 2 weeks ago..no signal from any sat. I moved my 311 upstairs where the 811 is and it works fine. Moved the 811 downstairs and still no signal. So Dish sent me a replacement. A remanufactured 811. Activated last Saturday and everything was back to normal. Last night the same thing happend. No signal except for whichever my locals are on. Is there any know problem with the 811. Is there any other HD receiver I cant ask for besides the ViP. I'm getting very angry about this.