At first, I had no issues with the game. However, I recently added a GeForce 6200 card to my PC, and once I did, the game began experiencing problems. Sometimes a few turns in, sometimes many, the screen will go black, reporting loss of video signal, and then the PC restarts. However, sometimes, the video signal is lost, without restarting the PC, and I must restart the PC by shutting off the power.
Has anyone had a similar problem, and what can be done about it?