I have searched the forum and am not able to find an answer to this specific issue, but I am ready to pull my hair out with frustration!

I have been asked to create a slide show for my son's graduation tomorrow night (5/29/14). I used Windows Movie Maker (in Windows 8) and have created the slide show with 4 corresponding songs without issues, but I have 2 MAJOR problems with the playback. 

The first issue that I have is that sometimes when I open the file there is simply no sound. I have checked all volume controls, etc. The only resolution I can find is to shut down my computer and reboot. I really don't want to hassle with this on graduation night. Any ideas how I can fix? I have already downloaded audio patches from Windows and nothing has worked.

The second issue is that the musical transitions are not working when I play the slide show in it's entirety. The first song transitions to the second with no problem, but after the second song, the music stops playing and the slides continue. The only fix I can find is to pause the slide show, back up a few slides and start playing again. Any idea why this is happening? It is so very frustrating considering the amount of time I have put into this project to have all these glitches. I would really appreciate any ideas of how to solve these problems. I would love to be able to play this slide show on graduation night (tomorrow!) without all these issues. Thank you!