I just received my copy of Vegas. I was experimenting with it, and imported an AVI clip into the timeline. Everything was going fine. However, the weirdest thing keeps happening. The audio will play, but it will be out of synch with the lip movement of the actor in the scene. It is like they are trying to play catch up. Any idea what may be causing this?

Another problem I am having, is when I import certain clips, I am getting no sound at all, just the video.

Does anyone know what could be causing these problems?