Just a data point. I am not sure where I read it originally (it wasn't here though wish I knew about this place on my first playthrough), but the solution Acleacius posted fixed my Dantoine and other random spots problems. I have an ATI 9800XT. I can even crank up antialiasing and antro-whatever now.
I had tried the edit ini thing posted in Lucas's support but that did diddly squat. Actually, before I read the solution with the 4.11 driver, I was just tweaking antro-whatever and it fixed the prob but it was a pain to keep doing that over and over.
I still have the gamma problem though. Everytime I exit KOTOR2 I get blinded by the high gamma of my monitor
. I should stop playing in the dark lol.