When running in 1920x1440 windowed there are a few graphical issues with text rendering, and the cursor is off by a bit. Did some poking and it seems to be occurring when it's actually being presented - when I used the screen recorder that actually hooks DX the issue isn't recorded (everything is fine), but when I record an area of the screen you can see the problem.

Text rendering (DX hook) - this is fine : https://www.youtube.com/watch?v=jq6Sc-r3izc

Text rendering (Screen) - how it actually appears. You can see the tops of some letters are missing and there are black lines in the dropdown at certain points. https://www.youtube.com/watch?v=qHT6Z4SIC8k

Cursor offset (DX hook) - again, looks good: https://www.youtube.com/watch?v=fces10HWsXg

Cursor offset (Screen) - you can see there is an offset when the tab highlights and the dropdown is activated: https://www.youtube.com/watch?v=IqYajBqFYaA

I haven't managed to reproduce this at any other resolution or aspect ratio and it only appears in windowed mode.