zbuffer biasing

[xtinct]

after starting beta20 i get a warning "zbuffer biasing - update your drivers or experience flickering". 1. The OK button on the warning doesn't seem to be clickable so the only option is to alt F4 and quitting. 2. Same after having installed the latest drivers for my Matrox Parhelia 128 card. Is this card generally not suitable for AH2? Is there a way to get rid of the warning and access AH2 even with flickering?

thanks
xtinct

Win xp pro
2.8 gig P4
2 gig ram
matrox parhelia 128 vid card

[Batz]

it's not clickable because the clipboard is up. Try to drag the box so the "ok" is off the clipboard.

If you can't then just click on "offline" at the bottom left of clipboard, it will take you into the game, then min the clipboard and click "ok".