Hey guys, I actually got it working again, I'll tell you how but I'm sorry if this doesn't work for you. What I did was uninstall dayz and delete the "DayZ" folder in "My Documents" (This gets rid of all previous dayz settings). I then re-installed dayz and it gave me the option to accept the EULA, and this time it worked and my dayz finally launched! However when I launched it my dayz was at weird resolution settings, so if this happens to you just change your resolution back to normal, along with any other original settings that you want. Once again this worked for me but I'm not sure if it will help you but it's worth a try. Hopefully I have helped... :)