I have two monitors plugged into the two available DVI slots plus a 40' HDTV plugged into the one HDMI slot. However when I try to extend my desktop onto the TV it automatically disables my secondary monitor. I know that my card is supposed to support up to 6 displays. What do I need to get them all working?
To support more than two monitors for this card you need an ACTIVE adapter to mini DisplayPort (in my case HDMI to mDP). If it's not active it won't work. I ordered one online and it works beautifully.