I loaded the live game through steam and I'm no longer seeing the crash I described in comment 6 nor am I seeing overlapping text on the new quest window.
(Since all windows open in the same location by default I do see menu items for one screen behind those for another but that's easy enough to resolve simply by moving one of the windows)

I did notice an issue when increasing the scaling above 150% where the options window, and probably other things I didn't test, have the top of it cut off. This prevents me from moving the window as well.
I'm guessing this is because I'm using an ultra wide screen monitor and you haven't made the game fully support that resolution. My native resolution is 2560 x 1080.