Your problem isn't the DCDivx software, it's that the movie's special effects are simply too intense for the decoder to handle. For one, the DC has to use FXPP to turn the normal color-filled footage and convert it into a crappy washed-out grey overcast, for realism. It also has trouble rendering HDR lighting of thousands of little light sources that bounce off the vampire's sparkly chest.
As for the audio, I would need a better description of 'way off.' Are you hearing long uncomfortable pauses followed by disjointed conversations that sound nonsensical? Because if you are, that's not a technical problem, that's a creativity problem.
Should I try a different movie then, like New Moon or Eclipse?
Does gypplay support 3D at 1080p? Or do I have to downscale it to 720p first?