please help me understand the latest itunes update. i've selected a song from my album and dragged it so that the playlist window would appear. i placed it inside one of my playlists. but now the friggin playlist window wont go away! i have to shut down and re-open itunes to get rid of it. i am sure it used to disappear on its own before. surely the illuminated people at apple thought of another way of making it go away that i am just not seeing it. this is itunes 11.1.1 running on OSX 10.8.5. thanks in advance!!