The resolution settings do not allow a resolution under 720p even though there several listed. Otherwise, the game seems to work well.
Thanks, I'll look into it later. This game's resolution system is quite old, so I'll have to see if something broke, or if something wasn't running correctly to begin with.
Edit: I'll update the system with bits from my newer games. It should hopefully allow you to set resolutions lower than 720p correctly.
Do be warned that some strange behaviors might occur if you constantly swap between display and resolution settings at the same time. If possible, set them one at a time.