You can change the resolution by editing the autoexec.cfg with notepad even run it in window mode ...


"FarZ" "4500"
"DetailTextureScale" "1.0"
"FogEnable" "1"
"optimizesurfaces" "1"
"windowed" "0"
"bitdepth" "32"
"FogFarZ" "4500"
"screenwidth" "1440"
"FogNearZ" "3000"
"DetailTextures" "1"
"enabledevice" "##mouse"
"EnvMapEnable" "1.000000"
"ModelShadow_Proj_Enable" "1"
"MusicVolume" "1.0"
"ForceClear" "0"
"SoundVolume" "0.5"
"screenheight" "900"