Randomized questions are causing quiz to lock up

I am creating a test in Quiz Maker.  And I am having problems with the navigation.  There are 10 questions groups with 3 or 4 questions (multiple choice or true/false) in each group, they are set to randomly ask one question.  If the user answers the question correctly they are branched to a blank slide that plays a flash movie.  If they answer incorrectly they are branched to a different blank slide and see a different flash movie.  After seeing the movie they move to the next question group. This continues through all ten questions and 10 sets of flash movies.

I have set the navigation to branch to the specific slide #.  This works great for the questions, and moving to the correct /incorrect movies.  But moving back to the next question group is where I run into problems.  I have them set to go to the number of the first slide of the question group.  When I play the quiz it will play just fine if the randomized question is the 1^st question of the group. But if it is one of the other 2 or 3 questions Quiz Maker will lock up it part way into loading the slide.

Can anyone help with this?
thanks