I just have to say you guys are lucky....
I can't even finish one turn without the game CTD'ing.
I've got an Athlon 2600+, ATI Radeon 9600xt, 1gig of RAM...
I've tried the 5.10 & 4.12 catalyst drivers, I can't even get the game to start without unpacking the art0.fpk file...
I try building my first city, and the next thing I see is the desktop.
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(UPDATE)
I disabled the AGP section under SMARTGART, and was finally able to play....
Now my question is...is this a driver or game issue?? I hope it's a game issue, so that it can be fixed by the next patch.