I've just upgraded from 12.04, to 12.10, to 13.04 using the software updater, and I've upgraded Gnome from 3.4 to 3.8. The problem is, when I try to change my theme using the Tweak Tool, I am only able to change the GTK part of the theme. When I select another theme under the "Current Theme", nothing happens, not even when attempting to switch between the default themes. The result is windows with two different themes. Does anyone know how to fix this?
And yes, the themes I have ARE 3.8 compatible.