Hectic

Hello, Well recently my Arma 2 Operation ArrowHead has been crashing on start. I run the Steam version and Arma 2 seems to run fine however when i attempt to open Arma 2 OperationArrow head it just says it's stopped working. I'v reinstalled the game 3 times i'v done the steam cache thing 2 times or more and the issue is still there. Before this i was able to play without any issues but it only appear 2 days ago which is strange since it was fine before that. Any help will be greatly appreciated.