Preview in Flash Player, loading movies

Hi,
When I preview my movie in FlashPlayer, with the download settings to 56K, I have the feeling the player doesn’t react like it should.

I load several Movies (all between 10 and 20 KB, and with their first keyframe blank and a stop on it) into different levels into a Main movie on the first frame of the main movie. I give them enough time (about 5 seconds) to load by showing a little intro in the main movie. Then I can call the loaded movies to play.

This worked fine on another site I made. But when I preview my current project in FlashPlayer (pressing ctrl+enter two times), I have the feeling that the external movies are not loaded right away, but only when the user calls them by, for instance, pressing the menu buttons.

And I think this will be different in the ‘real world’ situation, looking at another project i have done.

Could someone tell me please if this is a know problem, or am I making a mistake? It’s a lot easier to check the speed of my site in the previewer than to keep asking people to check it who have a slow connection!

thank you!
Jerryj.