Windows 7 -Screen Saver will not work with GPO settings

I have tried all possible Settings but the screensaver will not appear on my Win 7 Desktop :

Here is the TechNet referred but screen saver settings gets disabled but it will not apply the .scr file .

http://technet.microsoft.com/en-us/library/ee617164(WS.10).aspx

Anand Shankar