-Mac 3 Posted July 20, 2012 When I use Six Launcher to try to join a game, it will begin to load the server and will show a few tanks. But, after a couple of seconds it will say "Bad Serial Number Given In Setup". (I never gave a serial number in setup). Does anyone know how to fix this problem or where I can put in my serial number? I still have it. Also this is the free version that I have downloaded. Share this post Link to post Share on other sites
Kylez 3 Posted July 20, 2012 This happens to me my first time and found out you have to start up operation arrowhead, then exit and try the six launcher again that should work. Share this post Link to post Share on other sites
Lito (DayZ) 6 Posted July 20, 2012 After installing Arma II, you should launch it once, before installing the mod.Cheers. Share this post Link to post Share on other sites