Did you restart the computer after changing the setting?
I'm going to see if I can recreate what it happening to you on my system, but I need to know if this is on a laptop or desktop, what size screen, what screen resolution is set, and what theme
(ex: Aero, basic, etc...) are you using to make it as accurate as possible. Could you also post a screenshot
of this in list mode to help see if anything may stand out?