scaryscar6

I am unable to join any server at all. This also happens on ArmA 3. When I try to join the server, I connect, and it downloads the mission file. As soon as it is done it disconnects me from the server and doesn't give me an error message popup, although it does give me an error in the chat box thing to the bottom left which says 'User' uses modified data file - C:\Users\'Username'\AppData\Local\ArmA 2 OA\MPMissionCache\'Random file with something to do with the mod'.pbo I would really appreciate any help with this error, as I really want to play ArmA but I can't! Thanks. EDIT: I just managed to get into a deathmatch game, so I think this only happens on servers which are running mods.

I have DayZ installed but disabled. These last three, I'm not sure but I can't join any Takistan servers and I've been told they don't require any downloads.