Hi.. I just upgraded from Vista to Windows 7 Presently every single time I open a new windows explorer folder, Windows 7 repeatedly changes my theme's window colour from the default "sky" to a black colour.. This only happens when opening a window shell but is fine (doesn't change the "sky"/Windows 7 theme) otherwise if I launch an application like notepad... Would anyone have any idea what is causing it or how I can fix it? I'm thinking that being able to "repair" the shell might help, except that I am not quite sure how to go about doing it. Any advise would be greatly appreciated!