how to make playlist play each song automtically

Im a new user...I have a playlist, but after first song plays, it just replays....and all of the songs have a checkmark next to them. What am I missing? Would like them to play one after another, many thanks

via iLounge Forums http://forums.ilounge.com/itunes-related-mac-pc-applications/278436-how-make-playlist-play-each-song-automtically.html