Video 'loading' screen captivate 6

Hi

I am producing some training videos, the general format is a few ppt slides with audio followed by a video demonstration (around 5 mins spread over 2 or 3 slides) with audio, and a few summary ppt slides with audio.

The total length is not more than ten minutes.

When produced each time the slides move from the ppts to the demo I get a loading screen. I have tried having the audio and video as seperate tracks on the captivate slide but then the audio will go out of sync with the video on playing, the audio continues playing while the video 'loads'

I am on version 6.1.0.319

thanks