I got a annoying error in UFO:Aftershock and Rome Totalwar (look at the pic). Error comes after about 5 min of gameplay. I have just reinstalled my windows and it didn't help. Anyone got any idea how to fix this?

My comp specs:
3200+ AMD Athlon
6600 GT GS 128 Gainward
MSI K7N4 Delta
400W PSU
1Gb DDR 333

My comp specs:
3200+ AMD Athlon
6600 GT GS 128 Gainward
MSI K7N4 Delta
400W PSU
1Gb DDR 333