Could not load Desktop and Screen Saver preference pane.
Hi all
Upgraded to Yosemite and get an error "Could not load Desktop and Screen Saver preference pane." when trying to open via system preferences.
Running a late 2012 iMac, 3.4 GHz Intel Core i7
I did a standard upgrade not a clean wipe install... can anyone help... driving me bonkers looking at the rock picture as really hard to see desktop.