One way to pinpoint any errors in your scripting is to debug the movie. You can do this by opening your Flash file and then clicking Control->Debug Movie (Ctrl+Shift+Enter).
From Adrien-Luc Sanders, former About.com Guide
One way to pinpoint any errors in your scripting is to debug the movie. You can do this by opening your Flash file and then clicking Control->Debug Movie (Ctrl+Shift+Enter).