My brother got Arma 2 and Operation Arrowhead some two weeks ago via Steam, but his computer couldnt handle it.
So I switched Steam user on my computer to his account and downloaded his game. We tried it out and it was fun, so I decided to buy a copy myself.
First we just switched user, bought it and tried to play together when he was on another comp, this didnt work since we had the same player ID.
So I tried deleting all local content and reistall it via my steam account, thinking this would solve the issue. It didn't.
Any idea on how to fix this?
