Game freezes on mouse movement

[gubelfax]

Just bought the game in the potato sack pack on steam and i am realy looking forward in playing it (was main reason to buy the back)

Game runs smooth as it should, as long i don't move the mouse. Even in the intros, it gets stucked, when i move my mouse. Chainging the system settings ingame doesn't change anything.


Here my sys spec:

windows 7 64bit (up to date)
Graka: nvidia 560 Ti (drivers are up to date)
CPU: AMD Phenom 9850 Quad-Core 2,5Ghz
Mouse: Razer Deathadder 3500dpi (driver & firmware up to date)