12.04 Today's X11 Update generates .xsession-errors

[makitso]

I run the gnome shell on 12.04. After todays x11 security update all sorts of errors started appearing in the .xsession-errors file.

** Message: applet now removed from the notification area
** Message: using fallback from indicator to GtkStatusIcon
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:127: RuntimeWarning: PyOS_InputHook is not available for interactive use of PyGTK
set_interactive(1)

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_provider_get_background_items: assertion `NAUTILUS_IS_MENU_PROVIDER (provider)' failed

** (nautilus:2648): WARNING **: Can not calculate _NET_NUMBER_OF_DESKTOPS

** (nautilus:2648): WARNING **: Can not calculate _NET_NUMBER_OF_DESKTOPS

** (nautilus:2648): WARNING **: Can not get _NET_WORKAREA

** (nautilus:2648): WARNING **: Can not determine workarea, guessing at layout
"sni-qt/2646" WARN 08:49:58.792 void StatusNotifierItemFactory::connectToSnw() Invalid interface to SNW_SERVICE
No systemtrayicon available

** (nautilus:2648): CRITICAL **: nautilus_menu_item_list_free: assertion `item_list != NULL' failed

** (nautilus:2648): CRITICAL **: nautilus_menu_item_list_free: assertion `item_list != NULL' failed