To disable Webshots:
1. Open your Webshots software.
2. Click on the Settings button
3. Click on the Screen Saver tab.
4. Uncheck the box next to Use Webshots As Screen Saver.
5. Click on the Wallpaper tab
6. Uncheck the box next to Use Webshots Wallpaper on Desktop.
7. Click OK.
Source - webshots . com