I have a Yamaha RX-V667 HT receiver connected to my TV via HDMI. The RX-V667 has 6 HDMI inputs. I can connect my Blu-Ray player to any of those inputs and it works fine. Video from the player to the TV through the Yamaha looks great.Just got DISH satellite TV. I can connect the HDMI output of the sat receiver to my TV via HDMI and it looks fine.Here's the problem...if I connect the HDMI output of the sat receiver to an HDMI input of my RX-V667 the video to the TV is intermittent. Picture and sound blinks on then off at maybe 2 to 3 sec intervals. Seems that the Yamaha and the DISH receiver just don't want to play together...separately their fine, just not together.Anyone have any idea as to why?