Problems with Elsa Erazor IIIpro

All OpenGL games (QuakeIII, KingPin, etc) are looking very strange. Can somebody help me???
Please sent all answers and sugestions!

What do you mean looking strange?

Thank you for your answer.
The textures looking rainbow and the HUD is unreadable. If I change the resolution and the colors sometimes it goes better. But if I start a new game the effect is the same.