I have 4 311 receivers. The last 4 mornings when I first turn on the one used the most (the other 3 are working fine), we only have a black screen with program info across the top. The epg is there, but the pic for the channel tuned into is black in the upper right corner of the epg. If I check the info screen, both the 110 and 119 sats are red X's. If i do a check switch, it tells me that less sats were found than last time. If I do a hard reset with the power button on the receiver itself, it searches for the sat signal, reloads the guide, and will continue to work fine for the rest of the day. But if I do nothing at all for a few minutes after running the check switch test and getting the error message that less sats were found than before, the box will suddenly start searching for satellite signal all by itself, alternating between test 0 and test 1 of 5 for 2 or 3 cycles, I hear clicking sounds from the receiver, then the receiver suddenly powers itself off and on (the green power light goes off and on all by itself), 2 or 3 times in rapid succession, then the searching for satellite screen comes on, it goes thru the tests from 1 to 5 ok, loads the guide, and all is well for the rest of the day. Any ideas what is going on with this receiver the past 5 mornings? The weather is clear, so that's not it (the other 3 receivers come on without a problem each morning). I have never seen any of my 4 receivers turn themselves on and off by themselves as this one has done the past several mornings after I run the check switch test. I am concerned that this receiver may have a short in it somewhere, and could possibly pose a fire danger. Thanks for any thoughts from the techies on the board.