I tried everything I can think of to change the desk top back ground but it just stays the same- Windows 7- picture. So not sure what to do now or if it is a fix from microsoft that has to be done? I did follow all the right instructions to do the change but with no change. The Theme will change when I click on it but not the back ground. Read tutials and treads and made sure I was doing it right and all settings were right but still no good!! It really isn't that big of a deal but if it's suppose to work why not on my brand new computer and operating system? 
My Computer
- Computer Manufacturer/Model Number
- Custom Made
- OS
- windows 7 Pro 64 bit
- CPU
- Intel Core 6 series i3-2120 3.30 GHz
- Motherboard
- Gigabyte H67M-D2-B3
- Memory
- 8.0gig RAM
- Graphics Card(s)
- Geforse 9400 GT
- Sound Card
- don't have a sound card- just what comes with system?
- Monitor(s) Displays
- Insignia LED HDTV MODEL#NS-22E430A10
- Hard Drives
- Seagate Barracuda 500GB 16mb cashe 7200 rpm
- PSU
- Coolmaster extreme power plus 550w
- Case
- APEVIA
- Cooling
- 2-external fans adjustable speed and 1-CPU