ac freezes

[morg]

Hi,

recently I've updated my older version of assaultcube to the new version.
From that moment, every time I play multiplayer, assaultcube freezes.
Sometimes It freezes directly after connecting to a server, sometimes I can play for 20 minutes before it freezes. I can do nothing: I can't move my mouse, I can't close ac so I have to restart my pc.

Anyone any ideas?

ps: I'm using ubuntu12.04


Thanks!