So, I have an HDMI connection from my pc to my monitor. And when you open up nvidia control panel, I get the option to have a PC res. or an ULTA HD, SD option. If I do the 1920 x 1080 with 165 hz option on the PC section, the very thin black bar comes up. But If I do the ULTRA HD, SD option which has the 1080p, 1920 x 1080 with 120 hz max, the black bar is gone. But I don't really want the ULTRA option. I have tried the Display Port, but the problem is still there. I also do not have another system to try it on.