There is something whit dayz and panda anti-virus, because i have read on steam that I'm not the only one whit this problem and every one whit the problem have panda anti-virus. When I start the game it works fine but when I'm pressing play it most of the time freezes directly but some times I can play for like max an hour. And when dayZ freezes/crashes then steam, skype and the internet stops working so I have to restart my computer.