How do I switch from Unity 3D to Unity 2D in Oneiric Ocelot?

[Tom Masterson]

Several of us have asked this question on this list and still have no 
answer that does not require sighted help.  If you have someone who can 
help there is a icon (I believe it was described to me as a gear) down by 
the password on the login screen that will allow it to be changed.  So far 
no one has come up with a way to do it if you can't see that I am aware 
of.

Tom

On Wed, 2 Nov 2011, Greg Lopez wrote:

> Greetings,
>  
> I’ve recently installed Ubuntu 11.10 on my desktop computer, activated Orca and have it starting by default when I log in,
> but I’m stuck with the Unity 3D desktop. I understand that Unity 2D is more accessible, but I don’t know how to switch to
> it. I’m wondering if someone can explain how to switch the desktop, and how to make it accessible as possible, as I use the
> system as a home server.
>  
> Thanks in advance,
>  
> Greg L
> 
>