-g: yes you were clear the first time around. Kappy is unsuccessfully trying to be funny in a serious fashion!
Try pulling out your playlist file (.p.list) in the itunes folder and put it on the desktop. Theer is no check point to manage this default setting from the front end.
hope this helps
go into the finder (not in itunes) and open "music" favorites > downloads folder and drag p.list to desktop. (It's where all your itunes system folders are stored.)
You can also "deauthorize this computer" under > Store menu.