I can't see the icons for my armor anymore they are so dark, but the whites are still (1.0f, 1.0f, 1.0f). Likewise the default green for the ooc chat in the default UI is 1/4 the brightness it previously was. The game is playing really in the wrong portion of the gamma curve.
Not sure how you guys are modifying the client; but if you can't access the frame buffer and modify the gamma there directly then don't do it at all please.
If you do have access to the frame buffer then see how to do it correctly here:
http://http.developer.nvidia.com/GPU...ems3_ch24.html