No dates on mail

My Acer Aspire One is running Fedora 10 with KDE 4.1.3, KMail 1.10.3 reading 
mail from my own IMAP server.  The column for showing dates (in the mail list 
window) is empty, and the date field is empty in Fancy Headers, Standard 
Headers and Long Headers view.

Could someone using KMail 1.10.3 check whether he has the same problem?   I 
need to know whether to report to kde or to fedora.  Thanks

Anne