Just got this today, and I've used the DirectX settings config utility that came with the game, but it doesn't fill the screen width as I'd expect, but does fill the height accordingly. I have black borders on each side of the screen, and wondered if this is normal. I have it set to Fullscreen, 1920x1080, but I don't see any other setting to get rid of the black borders. Is this expected, or is there perhaps something I'm overlooking?

Disable aspect ratio correction