F13 new install: Nothing on X screen

[sean darcy]

F13, new install over F12, but not an upgrade.

It boots, X comes up, a blue wallpaper with some swirls, but no panels, 
no icons on desktop. Nada.

Any clue?

sean

rpm -qa | grep ^gnome | sort
gnome-applets-2.30.0-1.fc13.x86_64
gnome-backgrounds-2.30.0-1.fc13.noarch
gnome-bluetooth-2.30.0-1.fc13.x86_64
gnome-bluetooth-libs-2.30.0-1.fc13.x86_64
gnome-color-manager-2.30.1-1.fc13.x86_64
gnome-common-2.28.0-1.fc12.noarch
gnome-desktop-2.30.0-3.fc13.x86_64
gnome-desktop-devel-2.30.0-3.fc13.x86_64
gnome-devel-docs-2.30.1-1.fc13.noarch
gnome-disk-utility-2.30.1-1.fc13.x86_64
gnome-disk-utility-libs-2.30.1-1.fc13.x86_64
gnome-disk-utility-ui-libs-2.30.1-1.fc13.x86_64
gnome-doc-utils-0.20.1-1.fc13.noarch
gnome-doc-utils-stylesheets-0.20.1-1.fc13.noarch
gnome-games-2.30.1-1.fc13.x86_64
gnome-icon-theme-2.30.2.1-1.fc13.noarch
gnome-keyring-2.30.1-2.fc13.x86_64
gnome-keyring-devel-2.30.1-2.fc13.x86_64
gnome-keyring-pam-2.30.1-2.fc13.x86_64
gnome-mag-0.16.1-1.fc13.x86_64
gnome-media-2.30.0-1.fc13.x86_64
gnome-media-libs-2.30.0-1.fc13.x86_64
gnome-menus-2.30.0-1.fc13.x86_64
gnome-packagekit-2.30.2-1.fc13.x86_64
gnome-panel-2.30.0-1.fc13.x86_64
gnome-panel-devel-2.30.0-1.fc13.x86_64
gnome-panel-libs-2.30.0-1.fc13.x86_64