Anyone ever have this problem? Dish just sent me a replacement 622. Mine had a bad hdmi port. Tuner 2 doesn't seem to work on the replacement. Check switch runs fine. I see my switch, and separator. All 3 sats on both tuners are green. 622 is in single mode. Everything records to tuner 1. When I use the swap button. black screen and no sound. Swap back to tuner 1, all is well. Another weird thing. If I hit the mode button for dual, my resolution switches to 480i. ( I have it set to 720p using component cables ) Switching back to single mode , receiver stays in 480i. Only way to get it back to HD, is to reset it. Dish is sending me another 622 replacement, so I'm too concerned. Just pisses me off that Dishs wastes my time sending me a bad 622 to begin with.