Is there a way to change the game resolution? I can´t select anything other than 800x600 in the options menu.

800x600 is the highest supported i believe, There is a config launcher in the games files that lets you change color modes and i think goes down to 640x480

Thanks for answering this. Now I won't have to waste time trying to fix the problem. Not a deal-breaker, and I really want to play the series chronologically before returining to the 2017 release, so I'll just deal with the minor annoyance of black borders.