when loading gnome-appearance-properties, the process aborts with the error: "Gtk-ERROR **: GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported"
Created attachment 431007 [details]
Attached file /home/ahecox/core.4587.
The GTK 2.x symbols probably came from metacity's private library, which would have been used to preview window manager themes.
This particular preference panel was removed (already in rawhide), and will be replaced by a customisation panel instead, upstream.
*** Bug 608422 has been marked as a duplicate of this bug. ***