4870x2 + OpenGL = Not playable?

[lobski]

I recently bought the id Superpack (On sale for $35), and 1/2 of the games do not work. RtCW, Quake 2's two expansion packs, and others. Some games work, some just get the "Grey screen of death". I have noticed that my Soldier of Fortune does not work either. The screen just goes white and I have to end the process.

Anyone with a 4870x2 have any problems with open GL games?

 

[lobski]

Another question;

Whenever I start quake, or older OGL games, the game loads fine, and I can hear sounds etc, but there are massive artifacts on the screen, rendering the game unplayable. But when I take a screenshot and take a look at it after I exit the game, everything looks fine.

What does this mean?