Sorry for resurrecting an old topic - but I found this when trying to work out how to enable the 2x2 dithering on my V2 SLI with the koolsmokey driver, win2k. I've tried adding FX_GLIDE_NO_DITHER_SUB 1 in the registry but the dithering still isn't working. I want to play Deus Ex which is a dark game, but with all the little dots all over the screen instead of the classic smooth voodoo dither is horrible. Could anyone give me a clue? I wonder what I'm doing wrong