How can i get dialogue repeated? Knight speaking with princess silent...

[GreenGiant]

I'm playing on a macbook - first level with the knight at the castle. I heard the king give his speech, but when i went to the princess, her lips were moving and no sound was coming out. other in game sounds were fine however. Is there any way of restarting/resetting that section so that I can hear whats being said? I want to hear any good dialogue. Also, on exiting, it seems to crash out for about 5 minutes.
Anyone help with that?
thanks
ash