Just as a way of tidying up my desktop of a lot of aliases of documents I regularly refer to or update. Don't know if this is a bug but I've tried to put my own custom images on this & they only work if I control/click on them. I've noticed that the official skins will open the drop down menu if they are control/clicked from anywhere on their surface but they have a specific zone, such as the dial on the iPod ones, where it works with a regular mouse click.