Soldier of Fortune: Payback - HD rez

[Somian]

Hi, do you know how to set the game Soldier of Fortune: Payback to a proper full HD Widescreen Resolution? In the Menu, the max Resolution i can set for my screen is 1600x900, but i want 1920x1080 which works in many other 3d games. 1600x900 looks ugly, because there is no anti-aliasing in the game. There also is no .ini file to set the proper reolution.