Ignore - triplicated

I used to be able to get invitations from Exchange/Outlok users that contain .vcs attachment, and could click on the attachment to accept, with everything working. In R6.03, this doesn’t work - cannot open .vcs, can view it but its box says “Scheduling Notes in iCalendar file”, and I’m using Notes client, not iNotes. If I say “Import selected”, I get a new entry in my Inbox, but cannot open it - errors “note item not found”.