in the win7 explorer, those fading black and white triangle drive me nuts. You have to hover over them to see which folder has any subfolders. Typical case of let designers do a user-interface-experts job. +/- has been used by milions of people worldwide for decaded and is the interface standard in all sorts of software. Why on earth change that? Anyway. I want +/- instad of fading in/out-black/white triangles (which make no sense at all). Like XP.