bug crash pacific

I originally played Civ 4 BTS on a Hewlett Packard p6710f. I then purchased the computer below, and downloaded the Steam Civ 4 to the new computer. Shinobee SSD Ultra 8-Core Gaming PC/Multimedia Desktop Computer - FX 8300 8 x 4.20 GHz - AMD Radeon RX 460 2GB DDR5 Graphics - 8GB DDR3-240GB SSD...