Help!  I am trying to fax from Word 2003 and it just won't work!  

I have a US Robotics Fax Modem and have it set up correctly (as far as the
wizards go).  My recipient is set up with fax number in Outlook 2003's
Address Book.  So far, so good.

I open my Word document, click File, Send To, Recipient Using a Fax Modem,
go through the ensuing wizard and presto!  It Dials!  

Here's the hard part:  after a minute, it gives me a fatal error and ends.  
What's up with this?  What have I done wrong?  The inherent Help function in
both Word and Fax Module is worthless at this point.

Any ideas?