At the slide show menu (where it has those 2 faces spinning around and around) press the Select button. You'll see the letters 'BGM' at the top, and the word 'shuffle' on the bottom. Press Up to choose BGM which allows you to make the music while viewing the slide show classic or P.Voice, or press Down to shuffle the pictures while viewing the slide show so they're not in order. To get out of this, just press Select again.