I have the DVD versions of Arma 2 and OA installed. I have not played in quite awhile. Tonight I tried to run the game and I'm getting the "Bad serial number setup" error. I did a search on the internet and the only thing that comes back is this error happens on the Steam version of the game.
Should I reinstall Arma 2/OA in Steam? Did anyone else come across this issue with the non steam version?