delted emails still displayed in inbox-list

Hello everybody!

after some years of absence to kde-pim, I decided to give the whole package another try. (I upgraded my openSuses to 12.2 getting KDE 4.9.5)
Now, overall, that kde-pim / akonadi monster seems to run.
More or less.
But I still got some little problems to solve.
(so I'm afraid, I will have to actively use this mailinglist for the near future ... ;-) )

The first one is more a question, than a real problem:

My emails are held on a cyrus IMAP server. The connection to the server is o.k.
emails are listed.

But if I delete an email, it is moved to the trash-folder (as expected), but it is still displayed in the inbox-list with light-grey color (nearly unreadable).

Is this behavior intended or does it indicate some error?
How can I get rid of them ?

Norbert
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