The official Operation Flashpoint site offers a new CheckOFP utility for download which "will check if your instal[l]ation of Operation Flashpoint is good. If you are encountering strange behaviour (random crashes, strange error messages) with your OFP instalation, please use this utility to check if the game is installed properly." The tiny 27 KB download applies to the available European versions of the game, as the US edition and upcoming version 1.20 patch already include this verification.