Huck

This worked for me: -window -x=1920 -y=1080 -noborder (Put these parameters into DayZ Commander Additional Launch Parameters first). Otherwise, try this: http://www.youtube.com/watch?v=38HK8aiIXzc

If you don't think you've run into a hacker join a PVP server, especially with a high Russian population. You know, the ones where you spawn fully geared ready to kill. You'll see everything from teleporting, to invincibility, to aimbotting. I called a hacker out for making a 4000+m kill and he teleported next to me and killed me. He was globally banned shortly thereafter, but still, the damage was done. No matter which online multiplayer game you play you will encounter hackers. The best way to avoid/control hackers is to find a private server either with active admins and/or whitelisting. Period.

An easier way is to use DayZ Commander. http://www.youtube.com/watch?v=Nm7iFinhaag

http://www.youtube.com/watch?v=Nm7iFinhaag&feature=c4-overview&list=UUbyRIrtS-13E2MYT4nSZGnA

This video helped me with the bad serial number error and unfortunately I need to use it quite often >.< http://www.youtube.com/watch?feature=player_embedded&v=_-U9yFhK7S0