We have sbsserver 2003 and Outlook 2003 clients. One users sent items shows messages up to the 8th of this month, but if i search for his sent items in the message tracking centre it only shows messages after the 8th which do not show in his outlook. I first assumed it must be a synch problem with his ,ost, but the problem remains after unticking 'cached mode', renaming his .ost, and deleting his outlook profile and creating a new one. (sent items still don't show after 8th if using OWA). A test message sent from his profile today shows up in both client and tracking centre. Could it be a problem with the tracking logs and the tracking centre, but if so why are the recent messages missing in outlook?

Software/Hardware used:
SBS 2003 Exchange and Outlook 2003 client