Help setting up xfce4 on ubuntu 8.04 - does not connect with Dbus --> Blank screen

Thu May 21 17:14:36 IDT 2009

Hi All,

I have  stripped down  ubuntu 8.04    no X windows (installed  with 
debootstrap)

Now I am adding XFCE desktop

XServer starts up normally (ps + Xorg.log) , but xfce gives strange 
errors and screen remains blank :

 more .xsession-errors
Xsession: X session started for vbox at Thu May 21 20:41:42 UTC 2009

** (xfdesktop:6742): WARNING **: Unable to initialise D-Bus.  Some 
xfdesktop features may be unavailable.

(xfwm4:6733): libxfcegui4-WARNING **: ICE I/O Error

(xfwm4:6733): libxfcegui4-WARNING **: Disconnected from session manager.

(xfdesktop:6742): libxfcegui4-WARNING **: ICE I/O Error

(xfdesktop:6742): libxfcegui4-WARNING **: Disconnected from session manager.
xfce-mcs-manager: Fatal IO error 11 (Resource temporarily unavailable) 
on X server :0.0.
xfwm4: Fatal IO error 2 (No such file or directory) on X server :0.0.
** Message: Xfce Menu: screen changed: 0

** Message: No valid plug window.

(xfce4-panel:6735): Gtk-CRITICAL **: gtk_socket_get_id: assertion 
`GTK_WIDGET_ANCHORED (socket)' failed

** (xfce4-panel:6735): CRITICAL **: An item was unexpectedly removed: 
"Xfce Menu".

(xfce4-panel:6735): libxfcegui4-WARNING **: ICE I/O Error

(xfce4-panel:6735): libxfcegui4-WARNING **: Disconnected from session 
manager.
xfce4-panel: Fatal IO error 11 (Resource temporarily unavailable) on X 
server :0.0.
xfdesktop: Fatal IO error 11 (Resource temporarily unavailable) on X 
server :0.0.

(xfce4-menu-plugin:6765): Gtk-WARNING **: cannot open display: :0.0
Xsession: X session started for vbox at Thu May 21 20:49:42 UTC 2009

root at lev:~# ps -ef |grep dbus
105       2262     1  0 20:46 ?        00:00:00 /usr/bin/dbus-daemon 
--system