I have the same problem with my new Windsport, except that it's the bedroom hdmi cable that's not working. Believe it or not, the dealer couldn't seem to understand the problem. He said that I needed to connect a blue ray player to the switchbox in order for the switchbox to work. Then it would play on the bedroom tv through the hdmi cable. This after it sat on their lot for 10 weeks again.
Well, no s*** Sherlock! Like I hadn't already tried that and found it didn't work.. It seems that everything that they can't or don't bother to fix because it's too much work, is my fault and I just don't know how things are supposed to work. I've even been told that there are some things that I would just have to live with because they couldn't find the cause of the problem.
After a rather long and not altogether friendly email to the dealer and Thor, it was suggested by Warranty Support that I get the wireless hdmi and Thor would cover the cost.
It's ordered today and should be in by next week. Hopefully it works !!