Windows Movie Maker – Text, Audio & Photos Out of Sync After Creating Movie

I am creating a movie in Windows Movie Maker which features still photos, audio and captions. Basically, for series of still photos in a row, the lyrics to the song playing in the background appear as captions underneath said photos. When I create the movie in Windows Movie Maker and play it in the program, everything syncs up perfectly. Unfortunately, when I save/export/create the actual movie and then play it in Windows Media Player, everything is out of sync - the audio is delayed so that the photos with the captions underneath no longer match up to the song. I have tried saving it in multiple formats - recommended for this project (mp4), YouTube specific (mp4), burning to a DVD (wmv) - and nothing works. Does anyone have any suggestions or advice? It pretyt much defeats the purpose to display lyrics to the song underneath the photo is that verse is already over by the time the lyrics appear. Thank you.