ScrollPane component loss of scrollbar

Hey All,
I’ve got an issue with the ScrollPane component. In my main movie I have a button when clicked loads a movie clip that has the ScrollPane component in it. The ScrollPane loads a .swf of text and pics.

It works fine when I preview it but when I upload it to the web the Scroll bar sometimes doesn't appear unless I re-click on the button again.  This is annoying.  

Has anyone else run in to this and know how to keep it working regularly?

Thanks for the input!
-The Dr.