I am having an issue displaying RGB through a few decklink cards in the office and I was wondering if anyone has any advice on this. When I send out an RGB signal from after effects or final cut from two of our mac pros the image flickers and flashes on the monitor. I originally thought it was the decklink cards in those computers but I swapped a non working one with a computer that works (and has the same exact specs) and had the same results... the working computer worked and the flashing one flashed. So, you say, if its not the card why am I in the Blackmagic forum? Well, my friends, I have tried just about everything I can think of on this issue and I am hoping that at this point there is some sort of decklink setting I am missing. My after effects settings are identical in the working and non working comp AND I have tried every available slot in the non working computer. Sigh. Oh, also I have tried a Decklink HD Extreme with the same results. Any ideas?