O365 shared Mailbox Shows same Content than private Mailbox in Outlook 2010

Hi,

I just created some shared mailboxes and added maself as a member to them.

After syncronization was done they Show up in my left Navigation bar in Outlook 2010 but they Show exactly the same Content as my private Mailbox and not the Content of the shared Mailbox (in OWA it works)

Any ideas?

Thanks in advance

Markus