Invitations automatically going into calender.

[Simon]

Hello,
When I receive an invitation request, the calender
automatically puts the entry in even through I have not
accept or decline it. If I accept, the calender entry
duplicates. If I decline, the entry stays in there. I have
checked to confirm "automatically accept meeting requests"
is not ticked. Anyone have anty ideas??:??????????
Running winxp with outlookXP, exchange2000.

thanks in advance
Simon.