@XNASorecerer
Well the autoexec.cfg did the trick! However I still got a windowed mode and hum, far less detailed (actually look bad) experience than in the Editor (system.cfg seem to have some importance like enable full screen, but it will not run with that enabled). Do you have a link or something what more options to put in the .cfg files? Can I put in options like fullscreen, 1920,1080 and similar? You don't need to teach me just point where I can read up about it, please?

Whoever has the gold makes the rules.