User configuration ? You must be joking, one look at Internet boards besides this one shows thousands, likely tens of thousands having these video issues. There is no doubt its a coding issue.
Besides a failed attempt to rush it to Market for Xmas Sales to boast Personal Bonus figures without proper Beta testing, they dont have a proper support structure in place. 2K are another US based Company that seem to think that the other 4.1 Billion people on this Planet outside US & Canada dont buy software. They dont provide contact details for support issues except in N America.
Not a huge issue of course, use the US mail address, however its another indicator as to the type of Company that has now got its hands on Civ IV. Unless they take drastic action soon, this will degenerate into farce.
For the record mine is 3.06P4, Radeon 9800Pro, 512Mb ram, latest drivers, 1.09 patch, etc. I also get the by now standard hassle of fog-of-war and the distorted triangles appearing on screen.
Regards
Zy