I give many lectures using short videos which I have taken from I movie that run automaticly when I advance to that slide. When I first opened them in ver 6 a box appeared saying the movies needed to Keynot be updated. I clicked " OK " They have all turned into white boxes on the "light table." These boxes have three little boxes at the bottom left hand corner.
Luckily I have all backed up on DVD and they can run on my previous Keynote.