As I load up DMC4, the FMV freezes and the sound turns off. I can get the main menu, but there's no sound from here on. C&C 3 runs fine but the sound is choppy in both FMVs and in game. I'm using a Radeon HD 3850, and I don't have a sound card but my mobo (Gigabyet GA-G33M-DS2R) claims to support HD sound. Are these specs not high enough?