I started using my third monitor finally but I didn't have a displayport cable for it, so I used an HDMI. My other 2 monitors, I'm using displayport cables. The color was off on the third monitor, so I bought another displayport cable to use with it, but it won't work. I can turn my pc off, switch the cables around and no matter what cable I use on the third displayport, it won't work. But I can switch back to HDMI on and it'll work. Anyone know what could be wrong? I also used the Nvidia displayport tool, I updated everything and it still isn't working. Thanks for any suggestions.