I have a receiver from Denon AVR-3806 with most updated firmware that was available. For some reason HD output to the screen, regardless of which of the 2 inputs I use ( input from digital set top box or media extreamer) comes out stained with enormouse Blue like big stains / shadows over the figures. Using componnet connectivity will give excellent HD result but I prefer using the HDMI connectivity. Any idea ?

Just to clarify again:
I have a receiver from Denon AVR-3806 with most updated firmware that was available. For some reason HD output to the screen THROUGH THE RECEIVER, regardless of which of the 2 inputs OF THE RECEIVER I use ( input from digital set top box or media extreamer) comes out stained with enormouse Blue like big stains / shadows over the figures. Using componnet connectivity will give excellent HD result but I prefer using the HDMI connectivity. Any idea ? I was told that the HDMI board in the receiver might need to be replaced with the cost of over $ 1000... Just to clarify again: I have a receiver from Denon AVR-3806 with most updated firmware that was available. For some reason HD output to the screen THROUGH THE RECEIVER, regardless of which of the 2 inputs OF THE RECEIVER I use ( input from digital set top box or media extreamer) comes out stained with enormouse Blue like big stains / shadows over the figures. Using componnet connectivity will give excellent HD result but I prefer using the HDMI connectivity. Any idea ? I was told that the HDMI board in the receiver might need to be replaced with the cost of over $ 1000...