Problem sending meeting invitations to Lotus Notes

[Jon Maxim]

I have to send meeting invitations to some of my customers who use Lotus
Notes. Sometimes they are read by Notes as a calendar entry. Other times they
appear as a script with a number of tags followed by some text. What has
bothered me is that I understand that Notes will only read i-Calendar
formatted tags so I have selected that in Options. The tag at the beginning
of the document that comes into Notes and which are ont interpreted as
appointments, starts with BEGIN: VCALENDAR. Is this some kind of know
calendaring issue in Outlook?

Thanks,
Jon