Problems with orca and updated Ubuntu 16.04

[Linux for blind general discussion]

I am running Ubuntu 16.04 with all the latest updates.  Under either mate 
or Ubuntu Default orca comes up and works with my braille display in some 
circumstances but there is no speech.  It does not work with even my 
braille display under firefox.  The only oddity I see in syslog or other 
places is the following line.

Jan 26 09:23:34 Tom-M2800 console-kit-daemon[5024]: (process:7120): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

Does anyone on these lists have suggestions?

Tom