Changing scene - strange behaviour

Question

Hi!
I am making an animation based on several scenes. The
animation is supposed to jump between the scenes by a "gotoAndStop"
command:
In the Scene " Introduction" there is a button with the code:
next_btn.onPress = function() {
gotoAndStop("Stepwise_test",1);
In the scene "Stepwise_test" there is a button with the code:
next_btn.onPress = function() {
gotoAndStop("Gliding_test",1);
In the scene "Gliding_test" there is a button with the code:
next_btn.onPress = function() {
gotoAndStop("Next_test",1);
etc etc.
This seems to work fine in the beginning of the animation,
but after 5-6 sceenes it jumpes to a scene that is not requested in
the code!
Changing the code so that another scene is requested may end
up in another result, but usually not the right one.
...and changing the sequence of the scenes in the scene panel
seems to influence on which scene that shows up!
Any suggestions?

Answer 1

OK, I did not know that, but will it solve my problem?
I experienced another thing: When I started Flash on another
computer, opened the same .fla file (without any changes), and
tried the animation; everything worked as it should. Does anyone
have a good explaination?