[Evolution] Expunge/Empty Trash problem

[rhubarbpie poetworld net]

Greetings:

I can neither Expunge or Empty Trash in Evolution 1.4.6.

When attempting to Empty Trash I receive the error:

>     Error while 'Expunging folder':
>     Error storing 'Local folders/Inbox': Summary and folder
>     mismatch, even after a sync

When attempting to Expunge I receive the error:

>     Error while 'Expunging folder:'
>     Summary and folder mismatch, even after a sync

I've used Evolution for quite some time and this problem has just developed.  Everything else seems to be working quite well.