How do I delete "one unread message" in Outlook?

[shop-extreme]

I keep getting "one unread message" in my Outlook but there are no messages.
How can I delete this? I'm using Microsoft Office Outlook 2003. Thanks for
your help.

 

[Brian Tillman]

I keep getting "one unread message" in my Outlook but there are no
messages. How can I delete this? I'm using Microsoft Office Outlook
2003. Thanks for your help.

Open any message and the count should reset.