Adding music from collection [Resolved]

When trying to add a piece of music from the "music collection" it won't let me listen to it before adding it to my slideshow. Also if I click on the "Add to Slideshow" button it won't add it unless I have my headphones plugged in, and finally if I do all that and then add it and subsequently remove the headphones and attempt to play the music back through the speakers it doesn't play.

I am using the latest version of SmartSHOW 3D - any ideas?

Update - If I go back to any of my previous slideshows I have created the music no longer plays, even if I have my headphones attached.

Ok - This has now been resolved - the software must have got into some weird state, shutting it down and re-starting it resolved the issue.