Since the last update the game freezes and after it my screen turns black. I can still hear the environment and my steps, while moving. The only thing I can do is cancelling the game with Alt+Tab or Ctrl+Alt+Del. I happens irregularly. Sometimes I can play one hour, sometimes a few minutes.
Also from time to time i can't use my axe or my firearm againt zombies. I have rised the weapon but I am unable to hit my enemies. I know that this issue is known, but it is mentioned rare. It happen really often. I relog, but after that I have a new charakter in underwear and i can't change from 1st person to third. Only moving is able. After a second relog I have died. This happend now three times in two days.