Where are my attachements ?

Hi all,

I have a problem with Outlook 2003, an Exchange 2007 and an IMSS server.
A sender sends me an email with some attachements (pdf, doc,xls). These files appear in the IMSS, I found these attachements in Exchange Message Tracker.
BUT, in Outlook, my email are totally EMPTY; the only thing I see is the text.

Where can be my documents ?

Thanx in advance for your help !

Xavier