mrgiggle

Hi, i was wondering if any one could help i have been playing dayz for a good amount of time, and suddenly it says bad serial number given in set up i have tried what people have told me none of it has worked, so far i think it's operation arrowhead is the problem any way to fix it?

The problem im still having is that it isn't installing my Cd key. does that mean i have to buy a hole new game?

Thanks for all of the replys.... but the problem was there wasn't a serial key in my operation arrow head file, so im reinstalling steam since i've tryed all of the stuff and redoing all of it. also i couldn't even get oa to run.