Hi William.
I am the one troubleshooting this issue for X-Ray Cat.
What we have concluded is this:
There is no similarities in programs(itunes, pcsuite etc.), 3rd party devices(BB, HTC, Nokia, SonyE) and no regional settings as well.
It seems that this happens when they start Outlook first time, since Tasks, Contacts, Jounal and Notes are also duplicated. We thought at first this might occur when users had accepted their first meeting request.
These changes are replicated to Exchange, so we cannot fix this by New profile, reinstall Office/PC, nor will any switches help.
The items in the calendar(and the other folders) simply start from day1 and goes forward. The old calendar is not updated(only if existing meetings receive updates) and other users and 3rd party devices, see only the "new" calendar.
When dragging meetings from old calendar to new(or the other way), they will appear as "Copy: <meetingname>" and all rights are lost, ie Organizer cannot see tracking and participant will not get updates.
So it seem that a link between these std folders is somehow lost and therefore Outlook creates new ones instead.
The Old folders cannot be deleted, so they must be default on the Exchange level. The new ones can be edited fully.
Suspicions:
Can this be caused by Exchange not being online/responding at that given moment the Profile is created?
Will it help users to "Move" the Calendar items in order not to loose the rights?
Maybe Userpolicies are not enforced. Meaning when they try to log on to exhange they will be prompted for password?
To do next:
We will look through the scanstate and userstate logs monday to see if USMT report anything(i suspect it will not).
We will create a restore of 1 usermailbox and link it to a testuser to see if it can be recreated.
If you have any tips or ideas, they will be much appreciated!
BR
Thomas