Ubuntu 13.04. Gnome-shell by default. In the system for a long time i did not change, just do install the software update. Earlier is always the theme of icons was faenza. At one point, after rebooting the computer icons came off topic. Now, through no Gnome settings or through ubuntu tweaker I can not change it. Any change of this parameter has no effect at all, default gnome icons are displayed by default and all.
Anyone know how to fix it? reinstall gnome-shell already tried.