John, thank you for answering my question. I opened a new project and applied the music and it played just fine.
Is there a way for me to copy and paste my slideshow and transitions to the new project? f not, does this mean I will have to build my slideshow all over again?
You have now posted 3 different post on virtually the same topic. This causes confusion for people who have previously answered your first post, and for any other users who want to help, because they really don't know what you have already been told.
You should really try to stay within one post and just keep answering your original post if you have additional questions for need to provide more information.