Kubuntu-KDE4 8.04 missing suspend/hibernate on inspiron 9400

[Charlie Zender]

Hi,

My inspiron 9400 has a fresh install of Kubuntu-KDE4 8.04.
The "exit" and "logout" buttons in the taskbar no longer
offer "suspend" and "hibernate" as options.
They were (semi-working) options on the gutsy distribution previously
installed on this machine.
Where did they go? How do I get them back?

Thanks,
Charlie
-- 
Charlie Zender, Department of Earth System Science, UC Irvine
Sab. at CNRS/LGGE-Grenoble until 20080815 :) 011+33+476+824236
Laboratoire de Glaciologie et Géophysique de l'Environnement
54 rue Molière BP 96, 38402 Saint Martin d'Hères Cedex, France