I'm using PowerPoint 2010 with a ten-slide show and I have imbedded (in slide one) an mp3 music file of fixed playing time length (the file is 1 minute 5 seconds)...playing across all slides, it only lasts until half-way through slide five. I've tried 'Loop Until Stopped', and 'Rewind After Playing' to no avail. Can someone please tell me how to smoothly transition this background music half-way through slide five to continue playing until the end of the show (the end of slide ten)? I look forward to your kind reply.