Hi, I have a Mac Pro 4,1 flashed to 5,1 running a Nvidia GTX 680 4gb card flashed as well. I have 3 monitors that I would like to use, but only two come up. The way I have them connected is: 1-24inch monitor to lower DVI port 2-30inch monitor to lower Display port 3-27inch monitor to lower HDMI port The only one that does not come up is the 27inch connected via HDMI. I am running Nvidia Web Driver 346.02.03f08 if it helps. Any help would be greatly appreciated.