Cannot Print Outlook Email from Network Printers

HI there, got a small problem with outlook 2003. One of my users complain that there is this particular email in the send folder which cannot be print after opening it up. (meaning double click and open it up)

It can only be send to the printer if i left click on email in main page of outlook and print it directly OR click on “Reply” for that email.

Anyone care to share a tip or two to me?