One error I've encountered lately really often in multiple games is "Out of Range" error when monitor tries to display something with unsupported resolution, or refresh rate, etc. I've seen it in 7 different games and in all of them I had to find settings file, which wasn't always named like that often was somewhere in my dokuments or app data, and in Brutal Legend I even had to create it myself.
So I would like to suggest adding something like The Witcher 2 configuration tool:
Or making it possible to change settings in launcher like in Trine 2:
So Project Eternity won't try to start in 4K with 200HZ.