If Show Puzzle Winner is selected, the lead player/team is highlighted after each puzzle has been completed. The default setting for this option is to show the puzzle winner. To select this option (if you have previously de-activated it), check the box next to Show Puzzle Winner:
The right side of the screen will show a preview screen of this event with a Sound button.
To customize the sound that is played when the leader is highlighted, click the drop-down menu for Sound:
Choose one of the pre-set options for sound or open the Sound Library and select one of your own.