[orca-list] Orca does not speak anymore on my Ubuntu 10.04 machine

[Delaunay Christophe <christophe delaunay technicolor com>]

Hi all,

This machine was working for several months but it suddenly stopped speaking a few days ago. When I log in, I 
can hear the jingle meaning that logging in was successful. Then, Orca is launched and displays correctly in 
Braille but it does not speak. All other sounds play correctly.

In orca preferences, at the "speech" tab, speech is enabled but I can't see any speech device to select. The 
list is empty. Before that, I remember that Speech Dispatcher was the selected speech device but it seems 
that Speech Dispatcher stopped working.

Please, what should I do in order to get a more precise diagnostic of the problem?

Many thanks in advance. Have a nice day. Christophe Delaunay