Horde: Email sorting after date in inbox

[Hermann Himmelbauer]

Hi,
I have a curious problem here with Horde: In my Inbox, the mails are not
sorted correctly after the date. Interestingly, some newer mails (from
2011) are sorted to somewhere at the end (to year 2007).

When I move all these mails to another folder, sorting is all right, but
when I move them back to my inbox, they are incorrectly sorted again.

I already tried to delete the Horde cache - with no results.

Any clues of what to do?

Best Regards,
Hermann

-- 
hermann at qwer.tk
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