I am working on a course with 4 lessons and a Main Menu. On the main menu, I have a sound clip that I want to play when the user first accesses the course. At the end of each lesson, the user is asked to return to the main menu. How can I set up a trigger so that a new sound clip will play when the user returns to the main menu? Also, the user does not have to complete the lesson to return to the main menu...they can return at any time.