A solution I finally found that worked was to make sure that you have your launch option all removed by going into your steam library> Right clicking on DayZ> properties> set launch options> then delete everything in that box and click ok. Also, if you have manually edited your dayz cfg files at all, exit the game and then go my documents and delete the folder titled DayZ. When you start the game back up DayZ will create new cfg files. After doing so you may have to change your settings back to what you prefer as they may have been set back to default.... hope this helps