If I use 100% instead of 250%, and if I use 1600x1200 then the left and right of my monitor are un-utilized, like the display is just a box in the middle of the screen with nothing in the margins.
Offically, we don’t support these high resolutions as of yet.
As you can see in our system requirements,
recommended resolution is 1280x1024 / 1600x1024.
Here is a workaround though: right click the Audition exe file: