So my monitor is 1920x1080 and I want to play at 1024x768. I get blackbars in this, is there any way to fix this other than putting 'scaling on fullscreen' in nvcp?
Well 1920x1080 is a 16:9 aspect ratio and 1024x768 is 4:3 so of course you will have black bars. You can change the scaling options but that may result in a stretched out picture depending on what game you're playing. You could also just play at a lower 16:9 resolution like 1366x768 or 1280x720