I am in AZ. I have SL5 4-wire going into SWM8. Line-of-sight no obstructions. Suddenly noticed CNNHD pixelizing and freezing. Other 99(s,ca,cb), 101,103(s,ca,cb),119 fine strong signal in the 80's,90's & 100's. Run the setup and it shows 99,101 & 119 have odd and even checkmarks but 103 has red x-es. I see that the SWM8 has two cables connected to ports marked for 103/110/119. I wonder - if this was a cable issue I should have a problem also with 110 & 119 which Signals are just fine. And would I see 103(s,ca,cb) signals in the mid- hi- 80's? Many zeros on 103(s), with no odd/even pattern. What next? Please guide me.