Lugheric

Im so lost. Im not a big pc gamer. I play minecraft and thats really it. I download Arma combined operations, and operation arrowhead isnt working. Im getting the same error messages. So I found this thread but im not really sure on what Im doing, so if someone could walk me through how to fix this problem it would be greatly appreciated. ---------- Post added at 14:37 ---------- Previous post was at 13:32 ----------