No audio in FMV's in C&C3

So, yeah. There's no audio in the pre-mission cutscenes or in-game things where the lady talks to you. It worked in the demo, so I don't know why it wouldn't work in the full game. The video works fine, it's not a sync problem. I also tried all the patches, and none of them worked. I searched around on google, and nothing came up. Any ideas?