I have a PowerPoint slide show with over 1500 photos and I have an music .wav file that plays during the slide show. The .wav file has about 10 songs on it than recycles over. Is there any way to get around the 999 slide limit for the audio? Can you add the .wav file to image 1000 to carry on through the rest of the images? Don't understand the need for a limit of 999. I have Powerpoint 97.