Hello, I got this problem too! I'm also from Germany and I use Arma Free + OA. I baught Operation Arrowhead a few years ago, when it was released. So I do still have the original DVD Box. But from now, I only get the message "CD-Key in use" Lets see, if someone else is really playing with my character. If this should be true, then I'm going to contact BI Support and as long as I dont get an useful answer, I have to annoy this secont player. For example throing away all his weapons, swimming out in the sea and stay logged in as long as possible.
