This works fine for me in Feisty now. Upstream have made several improvements in this area. Please re-open if you still see this on Feisty.
One remaining quirk is that running 'orca --help' kills an existing Orca session. I've asked on the list about this and will open a bug if it is considered to be one (it's a side effect of the keep alive feature). ** Changed in: gnome-orca (Ubuntu) Status: Needs Info => Fix Released -- orca menu item fails to launch https://launchpad.net/bugs/58660 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs