The game freezes or locks up every 10-15 minutes for about a few seconds; then resumes normally. When it locks up sometimes the screen will show the login menu or a screen shot of where I was previously in the game, then after a few seconds the game resumes. So far I have my video and sound drivers up-to-date. As well as all my windows updates. I also tried a disk clean up and a defrag. Also i tried repairing the game installation. I am runing the game in ultra mode and it runs very smooth with the exception of the occasional lock ups. The same thing happens in a lower video setting. Below I will include my pc specs and as you can see I should be able to run this game without a hitch as I played games that looked 20 times better than coh. This minor problem gets annoying cause I play as a healer and the lock ups sometimes cause my team members to die.

PC Specs :
Windows 7 64bit, DirectX 11, Intel Core i5-2410M CPU @ 2.30GHz, 4GB Ram, Nvidia Geforce GT 550M, Intel HD Audio, Intel Wifi Link 1000 BGN Wireless N. If you need to know more please let me know.