Antispam keeps restarting OE

I have recently changed computers.  Both use Windows XP and both are protected by Norton.  When I imported all my OE info over to the new computer I tried setting up the Antispam.  The message I get is "Norton Antispam has finished configuring Outlook Express.  Outlook Express will now be restarted.  And it does this over and over and over until I unclick the antispam feature in Norton.  How can I fix this?

Thanks

Karen