After installing Mavericks I cannot change desktop background
I recently installed Mavericks, after which I cannot change my desktop background. When I do try to change the background by going into the settings, after I click on desktop the settings application quits entirly. I have also tried right clicking on a picture and selecting the 'set to background' option but does nothing. As of now I have a grey background and cannot do anything about it. Any suggestions?
iMac, OS X Mavericks (10.9)