Ii bulid a course where I use lightbox to present extra information. It's a trigger on a certain picture on the slide that leads to a lightbox. When I then proceed to a next slide I come to the lightboxslide. It's of course not the way I want it to be. The lightbox should appear only on specific slides after a user klicked on a specific picture. What do I do wrong? Why it appears as a part of the course?