Here’s a great tip from Support.com. The nifty rotating Aero desktop themes that are available to you are determined largely by your language and geographic area. As an American, I see scenes from the United States. There are themes available in the English Language version of Windows 7 for Australia, Canada, Great Britain, and South Africa as well.
To add the themes to your palette, navigate to C:WindowsGlobalizationMCT. In the MCT folder you will see the additional country folders. Open each country folder, then the Themes folder, and double-click on the theme icon. This will add the theme to your Personalization palette. To select a different desktop theme, right-click on your desktop, select Personalize from the context menu and choose one of the new themes you added.
Enjoy! Right now I am seeing scenes from England on my desktop.Share