Outlook 2000. Mail server 'mail.bigpond.com'
Microsoft offers a hotfix for Outlook 2000 to improve its compatibility with iCal/vCal 2.0 meeting requests, which is what your colleagues are likely to be using, given that Exchange is not your mail server. See http://support.microsoft.com/?kbid=823199 . Alternatively, have Outlook 2002/2003 senders avoid using reminders in the meeting requests they send to Outlook 2000 recipients.

Signature
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> Outlook 2000. Mail server 'mail.bigpond.com'
>
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>> > send a calendar note it comes up in the normal format at the receiving end.
>> > Why is this? What can I do to fix it?