Looks to be an issue with how the monitor reads the video card output. I don't think it's something that is actually broken, just the monitor and the video card don't talk well together. If no-one here has an answer for this, you may need to contact the monitor support and ask them.
Btw, I'm using a VGA cable and NVIDIA Control Panel has no screen scaling option, desktop scaling ... etc. Are those settings hidden by default ? ( 266.58 WHQL )