Audia and video not matching

I have dvd fab plat. I downloaded a movie (Main movie to Ipod) and the audio and video do not sync together. I contacted DVD fab and they gave me a link to down load the newest copy. I copyed the movie again and this time same thing happened and close caption also showed up. Any suggestions on how to get the audio and video to match? :a

I am not real great with computers. This is my second attemp at downloading a movie to I pod. My first went great using DVD decrypt and a I pod converter. However this does not work on newer movies.