Help with "Bad Version error"

[DarkMiner2012 0]

Hello DayZ community, So, I bought ArmA 2 : CO a few days ago to play some DayZ with friends, but god is it hard to find a server... I keep getting the Bad Version error message for about 95% of the servers I attempt to join, I have deleted DayZ reinstalled it using DayZ Commander to latest version - including ArmA 2 to latest version but nothing...I still cannot join about 95% of the servers out there, all I want is for this to be fixed so that as long as I have the right map downloaded, good ping, addons etc, I can go right ahead and play it NO problem... ((unless its the servers ofcourse.)

So if anyone can help that would be GREAT