<AI)(*) 'something' Radeon 'something'>.
AI yes, not ati. But that old story i guess, no such function in current drivers. But many else.
.....
airandill
Did you play english version?
Try to remove settings config files located here:
<path-to-game>\config.lua
%USERPROFILE%\Documents\SpellForce\
Check Note's from this article for path without admin rights and Program Files game install path
https://www.pcgamingwiki.com/wiki/SpellForce:_The_Order_of_Dawn Then restart GOG Galaxy as admin and do verify game files - at least twice in a row (Galaxy since 2.0 update no more report result of verification, so second is verification for verification).
Than set game exe adminrun. Try to check or un-check pre-set disablefullscreenoptimisation option on exe file. Try few DPI scaling methods (start with per application).
Set Keep Aspect ratio in video driver.
Do not force game to work on unlimited FPS, or in any resolutions. Avoid of using localisation packs and mods - first try with clear game from GOG.
If that happen with localised version - its probably cause you have English Windows MUI installed. Switch to Polish MUI or change non-unicode text support in regional settings.
Or keep all English - but use separate 3rd party system locale wrappers (put them to the game folder).