Hi, I have a very strange problem with this screen paired with a Denon AVR1909, Sony BDPS350 and Humax Foxsat HD box. HDMI from both sources to 1909 then HDMI out to the DVI input on screen - the problem is that i can't get any picture or audio from the Foxsat when routing through the Denon just a black screen. The Blu Ray is fine and both are ok when connected directly to the screen. If i disconnect the HDMI lead from the monitor output on the amp the sound from the Foxsat back comes on - it seems like the screen, Foxsat and 1909 won't sync together. Any help or ideas gratefully received!