I'm using an older version of 3DFA currently, but I removed the extra 'show slide' from your buttons(you have 4 on each, you only need one) and it worked correctly. I'm downloading the most recent version now and will check it in that as well, but I am assuming that was your problem. It took a loooooong time to export for me as well. I haven't looked into why, but I bet it has to do with embedded objects.