Dxdiag entry:
Registry: OK
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Not Available
Draw Test Result: Not run
D3D7 Test Result: Not run
D3D8 Test Result: Not run
D3D9 Test Result: Not run
Ok -you got a lot of work ahead ....
In priority order
First fix the AGp - read this
http://forums.civfanatics.com/showthread.php?p=3577004#post3577004
Then Read this, its a list of things to reduce the video load
http://forums.civfanatics.com/showthread.php?p=3584355#post3584355
Your 9200 SE is an old card, and whilst the driver is in theory out of date on your PC (from dxdiag - Driver Date/Size: 8/3/2004 23:56:42, 201728 bytes), it maybe better to try the 4.12 drivers shown in the above as they are more likely to be stable for your card - try both shown, but I suspect the 4.12 will be better.
Sounds as though you have never had AGP enabled since you had it ..... the reason other games will have worked is because you have a good cpu, and it pulled you through. Now you are into a true 3D game, Civ IV, the weakness surfaces. The 9200s are low end of the requirements for the game,but many - not all - have worked ok, soits worth beavering away,but keep expectation on the level, dont rush it, take your time stepby step, and we might make it ...
If you hit issues or problems post any time we will do our best to help
Regards
Zy