(polkit-gnome-authentication-agent-1:1379): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(canberra-gtk-play:1387): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(polkit-gnome-authentication-agent-1:1379): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(polkit-gnome-authentication-agent-1:1379): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(polkit-gnome-authentication-agent-1:1379): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(canberra-gtk-play:1387): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(canberra-gtk-play:1387): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(canberra-gtk-play:1387): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1462): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1462): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1462): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(unity-window-decorator:1462): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1512): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1512): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1512): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(applet.py:1512): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:1615): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:1615): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:1615): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:1615): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:1657): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:1657): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:1657): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:1657): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(software-center:1709): Gtk-CRITICAL **: gtk_main_quit: assertion `main_loops != NULL' failed