[SOLVED] Desktop icons missing after 12.10 upgrade

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http://ubuntuforums.org – As the title suggests, my desktop icons don't show on the desktop after I upgraded to 12.10 from 12.04. Also, I can't right-click on the desktop - no menu appears. Everything else seems OK though. What could it be? If I open Nautilus, my desktop icons and files are still there in my Desktop folder. (Hardware)