Nvidia Cards Graphical Glitches?

[thronacx]

Durring the game the "fog of war" doesn't dissapear correctly leaving black backgrounds around all visable terrain. also terrain has bright and dark spots in huge rectangles.

Any one else seeing this?

My system:
AMD 64 3400+
1 gig ddr333
Geforce 5900 ultra 128mb (running latest nvidia drivers)