Menus not speaking in Oneiric

[Dave Hunt]

Hi

Most times, in most applications, Orca will not read the menus, whether 
activated by a press of 'f10', or by hitting a shortcut that should 
activate a menu.  For instance, in Firefox, if I use 'f10', Orca says 
"file label", but, moving the cursor up or down is silent.  The restof 
the top row will speak, for instance "edit lable", "view label"...  When 
I get to the Unity menus, such as "session", orca says nothing.  Note, 
from my subject, this stuff is, sometimes, spoken and working as it 
should.  I am using the Orca that is supplied on the Oneiric 
installation 32-bit desktop live cd.  I have added the Extra A11y ppa to 
my sources.  Following this, I updated my system with:
sudo apt-get update
sudo apt-get upgrade


What else do I need to do in order to enable this accessibility?  Note:  
I did the installation by enabling speech when the cd started, so, 
should be running Unity 2d?


Thanks for your help,


Dave  Hunt