Is this a bug or a configuration problem?

Since the latest Mandriva release installed KDE4.4.3 on my system, I've been getting two copies of whatever emails were waiting for me when I start up Kmail. The second copies arrive when it checks for mails the second time, so I'm assuming that for some reason the first time it's downloading messages it's not deleting them from the server.

Same problem whether or not I get Kmail to check mail on startup

Any ideas?

Not normal behaviour. Maybe another Mandriva user can say whether he also sees that?