"""" Exit Steam Run Steam as Administrator Right Click ARMA 2 > Properties > Local Files > Verify Integrity of Game Cache | Let it run Launch ARMA 2 let the game load to the main menu, then exit. Right Click ARMA 2 Operation Arrowhead > Properties > Local Files > Verify Integrity of Game Cache | Let it run Right Click ARMA 2 Operation > Set Luanch Options | Remove any text that is located in there, then close it. Launch ARMA 2 Operation Arrowhead (NOT COMBINED OPS) let it load to the main menu then exit. Get the beta file Right click > Run as Administrator and let it install. Then FOLLOW this GUIDE on how to get the beta to work with steam."""" I have tried this, and many other different ways, but they all do NOT work and I still ALWAYS get the error message "Bad Serial Number Given in Setup" I'm beginning to loose hope, everyone says that the regedit thing works, I tried it and I cant even delete all the Arma 2 OA files in there.....I have even done a FULL re-install of my entire steam program along with Arma 2 and OA. Someone please help me. I just wanna play....
