Snow Leopard won't let me change desk top

[HadaFatMac]

I want to change away from Aurora & translucent menu bar to Aqua Blue with nontranslucent menu bar.

Although I choose those options in the system Preferences box, the desktop does not change. When I go back to Preferences, translucent menu is selected again.

Same problem [user choices not empowered] with the screensaver.

OS 10.6.8 om a dual core mac mini 3.1

 

[Kaveman]

Start with a restart.

Try deleting the file
~/Library/Preferences/com.apple.systempreferences.plist

 

[HadaFatMac]

Restarts had not worked to solve the problem, so I deleted the prefs file and restarted, but it did not solvethe problem. I am still stuck with Aurora.

Further ideas? Thanks

 

[Kaveman]

So you deleted the plist and then tried making the changes again???
Thats the file that contains the settings. Check the Privileges on that file.

 

[HadaFatMac]

The plist has me allowed to read/write. I deleted the plist then restarted then tried to set the desktop to Aqua Blue but Aurora remains.