Sorry, I should have been more specific. :D I meant how in the start menu after you click "graphic mode setup" you can choose between overlay, surface, direct3d, ddraw, and open gl... which one of those is the best? :)
if it is for eDuke 32....then go for the one that looks best and is compatible for your system. I think Direct3d is best, but that's because I have integrated graphics that don't play nice with openGL XD.