A friend of mine has the titled setup...1 HD DVR, 4 HD receivers - he has the aformentioned multiswitch hooked up as follows... 4 coax outputs of au9 into 4 left inputs of MS 1 coax from 72.5 dish in correct input on MS (2nd from right) outputs 4-8 hooked into 4 receivers (2 into dvr, 1 each to 4 HD receivers), as follows - bedroom HD rec = port 4 basement HD rec = port 5 garage HD rec = port 6 HD DVR = ports 7-8 His basement H20-100 (port 5) keeps getting multiswitch error message (Multi Switch Problem. Check that cables are connected correctly and the multi-switch is working properly) or taking over command of his garage receiver (no signal goes from basement receiver to garage receiver) - more or less he can only get 4 of the 5 receivers to ever work, and the basement receiver seems to be the one with most the issues. His locals on 72.5 work on all 5 receivers when the basement/garage receivers are working. My thinking is he has a bad wb68. Otherwise, is this hooked up correct? I told him to try moving the port 5 coax from there to port 1, and if that doesn't work, move all 5 from ports 4-8 to ports 1-5. Any suggestions would be greatly appreciated.