[zovs66]

I have a 4k monitor (it defaults to 5120 x 2880, but I am) running at screen resolution 3840 x 2160 (in general for all my games, most games can't run in these larger screens or if they do the fonts are just too tiny).

While running at 3840 x 2160 in Window mode (no reason to use full screen mode) the game runs splendidly, I also set "Use Large fonts (CD only)" and everything is fine and dandy!

While running at 5120 x 2880 in Windows mode and using "Use Large fonts" everything is just fine as well (the font are a little bit smaller at the default zoom level (and in the in game screens (show unit details etc.) but zooming in just one level clears that up. Its quite a thing to behold at 5120 x 2880, even zoomed out all the way.

Essentially I prefer the 3840 x 2160 resolution since I play a few other games that work well at this res. (GG WitE/WitW, and TOAW, although I had to tweak TOAW's font.ini to handle 4k screen resolution).

YMMV