Here is what happened does this make sense? I tried to setup a linksys media center extender to my directv setup, but the ethernet cables were both defective, so it didn't work. In doing so I ran the hdmi cables through a monoprice hdx-401e hdmi splitter. I was able to see my directv signal without problem, but it kept cutting out, because the hdmi cable was a little bit long. So while adjusting my receiver in the stand, it completely lost signal. Now I can't get any hdmi signal at all, I think it bent the hdmi output on the hr21. I switched out my bedroom receiver to this location and everything worked fine on the bedroom receiver, but this receiver gets a black screen that says "check signal cable". The receiver turns on and I have done all the reboot stuff, but I get no signal at all. Just a black screen. Did the hdmi switch toast the hdmi output, or did I just bend it with the long cable. I'm going to check the s video output and see if the receiver still works at all. I think it will. I assume all hdmi cables are the same size as far as the plug size. I usually get all mine from monoprice. I'm scared to hookup this switch again if that is the culprit that shorted things out. Any advice would be greatly appreciated.