Hi, i have a problem with the signature check of all arma2 pbo. I tried to start arma in CO but the problem persists. I tried then to copy the arma2 addons folder into the OA one and boot only OA, but i get the same problem. Im sure i have used only @dayz mod and no other pbo were used except the one suggested by the guide. I have reinstalled 2 times OA but the problem still persist. I have arma 2 retail and OA steam version. Please help me, thank you.