Received date changes on messages kept in in-box

[Eric]

My received date changes on messages left in the in-box
to the current date when I received new mail this morning.

I had a message I received yesterday with a file attached
that I saved as unread at the top of my in-box. It's
received date changed to today and all new mail loaded
under it.

I am using Microsoft Activesync and syncing my iPaq.

Any suggestions would be appreciated.

Using Outlook 2002 in a XP environment.