Hey, you're right ! I have an Athlon 2400 and a Radeon9600, didn't know why I had a choppy 6 fps in design screen (and 20 elsewhere), disabled AA and poof I got 60 everywhere now !
It could be an ATI issue, they have many (I think I'll switch back to NVidia next time, they have good OpenGL optimization for Dominions *and* show fog in CM also...
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