I found it. I tried playing a slideshow that a firend had burned to a CD that I had played before and it didn't have sound either. Some how my Default audio device got turned off. I am on Windows XP. I went into the Control Panel, Sounds,Speech and Audio Device and started looking at setting. At some point I noticed that Default Audio Device was None. I tried several thinks and found that if I went into the Change Sound Scheme and the Audio Tab and changed the drop down from Moden #1 Line Playback to SoundMax Digital Audio, I then had a default audio device. I tried the CD slideshow and it worked so I tried the new slide show and it also worked. I sure don't remember changing that setting but somehow I must have. Thanks Tom