Ok, it seems to happen when using a color (solid or gradient) instead of an image for the background, that's your case right?
** Changed in: gnome-control-center (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/944076 Title: "Appearance" panel says "Current background ((null))" Status in “gnome-control-center” package in Ubuntu: Triaged Bug description: gnome-control-center 1:3.3.90-0ubuntu4, Ubuntu 12.04 alpha Below the picture of the display in the "Appearance" panel is the text "Current background ((null))". I don't know how this happens, but it shouldn't. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/944076/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp