Posted by MisterX
"
There's a fix for the DARKNESSin GLQuake....can't remember what it was tho. "
I found a fix at http://www.planetquake.com/frib/glquake.html#Idgamma . I used the author's pak2.pak file. However, even though it fixes the problem with darkness, the quality isn't great. In fact, regular Quake looks better. It does at least work so that I can play it in XP.
If it makes any difference, I'm using a TNT2 Ultra card. I did read that 3dfx cards provide better results in glQuake.