i was soo excited to come home today and play it i pre loaded it and everything nothing couold stop me! but then the pre load was a fail lol it gave me a fatal error

"Modern Warfare 2 - Fatal Error

Could not load localization.txt.
Please make sure Modern Warfare 2 is run from the correct folder

and i read in the forums just reinstall it any one eles run in to this problem and when i do get it working tonight anyone want to join me?