I have an AMD Eyefinity6 7800 board. I have 5 27" ASUS monitors connected to the board via the digital plugs. The board works great and provides my flight simulator a panoramic view outside the aircraft's cockpit.
However, the "primary" monitor (displays the Windows 7 64-bit desktop) blinks on and off while running FSX. Just the one monitor blinks. Every other piece of software I use does not have this problem - just FSX. I tried all the connections and they appear OK.
Why would just one monitor blink on and off and only while running one application (FSX). Very strange situation.