ScouseSteel 0 Posted May 24, 2012 .pbo files are not signed by a key accepted by this server. so im presuming i cannot use the free version of arma 2, and have to get full version and updated to 1.11? been trying to get this working now for a long time any help would be great, thanks.or is it possible i have to move the addons folder from arma2, into OA/expansion/addons instead of the OA main directory? Share this post Link to post Share on other sites