Defective diseqc switch!! 
After a couple more hours of trying everything imaginable, and just before I was going to have a go at the other half of that bottle of Merlot, I remembered I had a couple of old 2x1 diseqc switches in a drawer somewhere. I found them, replaced the brand new switch that came with the Visionsat, and BINGO! She scanned Ku like a champ. Honest to Pete! What are the odds?
Anyway, thanks to everyone for being so helpful. I appreciate it.
:

After a couple more hours of trying everything imaginable, and just before I was going to have a go at the other half of that bottle of Merlot, I remembered I had a couple of old 2x1 diseqc switches in a drawer somewhere. I found them, replaced the brand new switch that came with the Visionsat, and BINGO! She scanned Ku like a champ. Honest to Pete! What are the odds?

Anyway, thanks to everyone for being so helpful. I appreciate it.
