Outlook calendar being recreated

I have a user who is working remotely over VPN.  She recently got a new computer and was unable to get connected as she had been before with the old computer.  She brought the new laptop in and I set her up on the domain and configured and tested the VPN connectivity - everything worked fine.  

She took the laptop home and connected and life was good.  Then one day all of her calender items were gone.  I connected to her mailbox through OWA and noticed that she had two calendars and all of her appointments were in "calendar" and her Outlook and Blackberry were showing appointments from "calendar1".  I connected to her mailbox from my Outlook session and copied all of her appointments over to "calendar1" and they synchronized to her Blackberry just fine.  Then, after about 15 or 20 minutes, she reported that she was seeing a different calendar.  I was still connected to her mailbox as an additional mailbox in my Outlook session and she was now seeing MY calendar.  I had to clear my calendar items out of her "calendar1" and recopy her appointments over again and then disconnect from her mailbox as quick as possible - everything was fine.

Today I got an email that she cannot see any of her appointments anymore.  I connected to her mailbox through OWA and noticed that she has her appointments in "calendar" but not in "calendar1".  

The system had also created new notes, tasks, journal folders the first time this came up which I copied over the information and deleted the old folders.  These folders have not been recreated this time.

How do I get her account back to using "calendar" and get rid of "calendar1" and keep this from happening in the future?  I would prefer not to have to delete her account and recreate it because she works from out of town and is only in town once a month, so it would be awhile before I would be able to set up her laptop for the new account.
kevnielDirector of Information TechnologyAsked:
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Will need to check the Calendars Defualt in the send receive groups.
In OUtlook go to Send Recevie
Send Receive Settings
Define Send Recceive Groups.

UNder the users Mailbox, look to see which Calendar is selected for the gorup.
Im Guessing its calendar 1.
If it is, untick it.
Place a tick next to Calendar.
Then, given that theres nothing in calendar 1 she needs.
Delete It.

ONce done, go to Tools>Account Settings
Untick, Use Cached Exchange Mode.

Should make things a little bit easier

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kevnielDirector of Information TechnologyAuthor Commented:
Thank you for the suggestion, I will check these settings as soon as her computer is available.

As a travelling user, won't unchecking Cached Exchange Mode make performance slower and remove the offline copy of her mailbox?
kevnielDirector of Information TechnologyAuthor Commented:
I have made the recommended changes and will monitor for a couple of days and report back.
Any Luck?
kevnielDirector of Information TechnologyAuthor Commented:
Sorry for the slow update.  The user is often very slow to follow up and is always travelling.  It appears that the issues have stopped.  I will credit you will a well played solution apache.  Thanks for the help.
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