Icedove no longer allows transfer of emails between folders

[Ken Heard <kenslists@teksavvy.com>]

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I have Icedove 10.0.12 in a Squeeze box.  Today for no reason which I
can discover -- certainly not because of any *conscious* intervention
on my part -- Icedove will no longer transfer files between folders.
To do so I normally had been using the "File" icon  on the mail tool
bar, but it now no longer responds.

I tried to solve the problem by rebooting but with no effect.  What
would cause an Icedove function suddenly no longer to respond after
having working properly since installation of the Icedove package?

Regards, Ken Heard

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