322 DP plus, I have two receivers for 4 rooms, the first receiver in the living room is fine, the one in the backroom has been unplugged for a year, noone ever uses it. I just plugged it in, everything went fine, ran the check switch test, all green, everything is fine, Channel 101 is just fine. Except it doesn't get all the channels. Just a bunch of home shopping ones in the 200s, and most of those just show a black screen after I tune there. The Nasa channel works. I'm thinking it doesn't work right because its missed all the software updates and whatnot. How do I fix this problem?