My Killing Floor 2 is off center. Like, about 1/4 of my screen to the left is black, and it's moved too far to the right. I miss some important details when I play like this. I try and play in Borderless, and that works, but I don't prefer it. My resolution (1366x768) doesn't seem to be available in the Options. I tried setting my steam launch options to -w 1366 -h 768 but it didn't work. What can I do to fix this?