(gnome-settings-daemon:1658): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed (gnome-settings-daemon:1658): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed (nautilus:1697): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed (gnome-panel:1695): Gdk-WARNING **: /build/buildd/gtk+2.0-2.18.3/gdk/x11/gdkdrawable-x11.c:952 drawable is not a pixmap or window (polkit-gnome-authentication-agent-1:1721): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed (gnome-panel:1695): Gdk-CRITICAL **: gdk_x11_colormap_foreign_new: assertion `GDK_IS_VISUAL (visual)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_new: assertion `width > 0' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_fill: assertion `GDK_IS_PIXBUF (pixbuf)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_n_channels: assertion `GDK_IS_PIXBUF (pixbuf)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_rowstride: assertion `GDK_IS_PIXBUF (pixbuf)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_pixels: assertion `GDK_IS_PIXBUF (pixbuf)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_width: assertion `GDK_IS_PIXBUF (pixbuf)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_get_height: assertion `GDK_IS_PIXBUF (pixbuf)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_copy: assertion `GDK_IS_PIXBUF (pixbuf)' failed (gnome-panel:1695): GdkPixbuf-CRITICAL **: gdk_pixbuf_composite: assertion `GDK_IS_PIXBUF (src)' failed (nautilus:4772): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed