Hi, I have the Same Problem. Before 1.7.1 i hot no Problems but now, the Game freezes periodic for a few Seconds. I Cant Tell if it is the Beta Patch or the dayz hotfixes. How can i Post the informations of my System how u did it? Maybe wie have Something common. I think i fixed it. What have i done? I changed to the Arma:op direction and launched the beta patch. i never did it before. there is a exe called launch beta patch or something like that. Ingame, i switched to the dayz expansion and viola it worked. So i think it was a problem that the beta patch "wasn't applied" or something like that. I hope it will fix your problem as well. Sorry for my bad englisch :)