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600 ex-rt Automatic Zoom Flash Coverage troubleshoot

Sep 27, 2013
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In my 600 ex-rt I'm trying to set my zoom coverage to be automatic, and the "A" option seems to have disappeared from my LCD display! All I see is the manual option "M" and then an option for "Zoom ---- mm". I'm shooting in ETTL flash mode.
I can set the zoom to manual but when I use the dial to turn to auto the A never comes on nor does it display the zoom amount. The camera, in its flash controls, thinks the flash is set to auto zoom. Cleaning the contacts doesn't help. Any ideas how I can get the "A" option to reappear? Any suggestions?

Thanks,

David