I have an issue with the graphics in rtcw or quake, regardless if I change texturebits/colorbits/stencil bits etc it looks like it's using low color bits.
Here's an example: http://ph4te.piano-piano.ch//bully/sky.png
I brightened the image to make it stand out more. It's most obvious in the sky, but if I get close to textures it's pretty much visible everywhere.
Like I mentioned before I tried changing commands in rtcw's config, messed around in my graphic card's settings, also installed new drivers.
Nothing worked so I came to the conclusion that it must be my graphic card then. I could use a hardware update anyway so I bought one only to find out the problem is still there.
I don't really mind it when I'm playing myself but I'm making movies and it looks damn ugly.
I'm running windows xp and have an nvidia geforce gt 640.

Hopefully someone has the answer,
greets!