exporting Keynote as QuickTime movie

We are translating Keynote files into six different languages. Then importing them into captivate. We timed the slide transitions to our inserted audio and then exported as a Quick time movie. We then bring it into an editing software (Sony Vegas) where our timing does not hold, extra time is added to both the audio and the slides. We need to drag and drop the video into the video editing software in order to cut the video in to multiple segments.

When we drag and drop the video into the video editing software the video has dead space between the audio clips and slides.

What settings should we be using to ensure when we export a Quick time movie that our timing holds.