I have seen the same thing. However after a reboot my 921 no longer can tell the model number of my switch. (sw64) So now I can not get any local channels and many of my other channels are gone. I have tried several things including a switch tests without the cables plugged in and then with them plugged in. I have two other recievers and I have used them to test the cables and the switch they both work just fine. Any one else seeing this? Is this just something have happened independent of the new software? Software version is L331.