Daydrick

I am running into the same problems that other people in this thread have and I am at a loss to solving them. The chief problem is when I try to launch Combined Operations from steam, I get the DOS window for a second before it goes away and nothing happens. Trying up to 10 times in a row to launch it hasn't done anything. I downloaded the dayz mod files manually and extracted them directly to the Addons folders in @dayz. I've tried to run steam as administrator, I've set the launch options to "-beta=Expansion\beta;Expansion\beta\Expansion -nosplash -mod=@Dayz", and I've installed the most recent beta patch and done the ArmA2OA.exe switch trick mentioned earlier in the thread. I've also done the verify integrity of game cache thing, and nothing has worked yet. When I try to run the game as just Arma 2 OA, I encounter all of the same problems as mentioned in the first post. I don't know what else to do, and would greatly appreciate any help from anyone. Thanks!