Any help would be appreciated. I've got version .91b with multimedia ver. 1.0.039. I play with large galaxy enable and anywhere from 4-9 civ's. Habital planets set to abundant, with planets and stars set to occasional, star density set to either loose or tight clusters, anomalies set to abundant and tech set to normal. I have the latest Nvidia driver 8.1.9.8. My machine is a P4-2ghz with 512 meg of ram, and my video card is a GeForce 5700LE with 256meg ram. About 30-45 minutes into every game I play, I get a CTD. Be going along fine and then it goes to crap. Anybody out there with a suggestion or an answer I would be very thankful