the lack of sound, holograms and videos (Crysis 2)

Hi to all, warning spoilers this is the case, bought the pirates started the game I reach the first meeting with Nathan Gould it puts me in a chair and starts scanning and look at halo ikran, and there's nothing the only sound is the second occasion occurred in the mission dead man walking at the end Missy again sit down in a chair, start scanning and to SmartСтикле or whatever it should show the damaged organs of the protagonist, but there is no place that I can only see the technician to shake the air with your hands Pat must be followed by the cut scene in which the prophet saves us, but there's nothing simple at 2 seconds showed a white light after should be an explosion and a squad of C. E. L. L., led by Dominic, the Lockharts, but there is an explosion without sound and at this point of the game disappear all the effects except the speech there is a patch or fix that would fix all this