Where do you have the game installed at?
have you cleaned up everythign in the "stores" directory if you are on vista/windows 7? This its the "low security" portion for windows 7/vista.
as a rule of thumb get out of the habit of installing your games to the Programs Dir and instead install them into a directory under your c:\Users\[USER] (Mine i just called Games\)
look here
C:\Users\Username\AppData\Local\VirtualStore\
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