Didn't know where to post this but I thought you needed to know:
After installing the modded ATI DNA Drivers on my machine, Wintermute went hay-wire .. usually the FPS on my game was around 80 fps when displaying a movie. After installing these drivers the frame rate went very erratic saying 3000 fps. The ogg theora files then jerked at around 2 fps. I just thought everyone should know this and that these drivers are *not compatible* with Wintermute.