Hey, I've got an X1600 mobilitiy in my laptop. Lovely stuff, and when playing doom 3 in a window the colours are lovely and rich, the blacks are black, and it's great. In fullscreen however, everything gets a bit grey, shadows are a kind of mottled grey and there's nothing like the same vibrancy. I've tried r_gamma, r_lightscale and brightness settings and was stuck, and then extremely annoyed when I saw how great it looked in a window. Does anyone have any ideas ? 
john
john
but I thought I'd post an update anyway. Strange goings-on. Annoyed with my rubbish picture, I connected my big CRT and played on that, and it was awesome. I come back to my laptop, and whaddya know - the problem is gone. I don't know what the hell fixed it and I'm worried it willl come back but it seems solid. Mystery. 