problems with starting the game in standard screen resolution settings.

hi there.

i have downloaded the game. and installed it propperly. but i cant play it . i have a tv as monitor that wont show the standard screen settings. my qeustion is : is there somewhere a code or map where i can change the screen res ( not in game) just in the map where i installed it .. if so, can someone please give the directions i need to get there or help me in some other way ?