I am currently using a Windows 7 operating system in the hp laptop. The problem began when i changed to the windows 7 operating system. I had to change the background image of my desktop to a different image and i wanted in the stretch position. Now what happened was that when i saved the changes it just refused to accept the changes and the desktop is back to the same old image. I have tried these several times but failed everytime. Now what is the exact reason behind these. Suggest some solutions.