Hi all got some freezing going on mainly when in the same section half way through the game, im in a under ground car park killing the bad guys and then through a metal detector section and then it freezers my specs are as follows.

Win 7 x64 ultimate
Amd x4 965 Black edition
8GB RAM
1TB Hard drive main one and second drive is 500gb both sata
MSI N560 GTX-TI OC EDTION 1GB TWIN FROZER 11
Power supply 500w

Any ideas please help.