Outlook 2007 crashes on shared calendar

An Outlook 2007 user in our office cannot open a particular person’s shared calendar without Outlook crashing.

Details: Jodie can open Gary’s & Martina’s shared calendars, or any other employee’s calendar but Ralph’s.  When she opens Ralph’s shared calendar, her Outlook 2007 crashes.
Other people including myself have no problem with Ralph’s calendar.
Both Jodie and Ralph have updated versions of MS Office 2007.  Jodie runs WinXP, and Ralph has Windows 7.  Outlook connects to a single Exchange 2010 system that holds all the roles.

I have tried these actions:
Removed antivirus program to assure it was not affecting Outlook.

Did a detect & repair on her MS Office

Completely removed Jodie’s mail profile including everything in the Outlook portions of Documents and Settings. Rebuilt her mail profile.

Deleted the entire registry key “12.0" under HKEY_CURRENT_USER\Software\Microsoft\Office\ then completely removed Jodie’s mail profile including everything in the Outlook portions of Documents and Settings. Rebuilt her mail profile.

Completely removed Ralph’s mail profile including everything in the Outlook portions of Users %username%. Rebuilt his mail profile, and reshared his calendar.

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Have you tried to disable any sort of add-ons with Outlook, even unticking all tick boxes even if they are MS based. This has solved issues previously for me.
jnoaubreyAuthor Commented:
What kind of tick boxes do you mean?  Antivirus? = removed from system. A spam client? Not used.
The Outlook client is just doing one thing, being a client to Exchange.
Is there something else I should be looking for?
RobOwner (Aidellio)Commented:

What @MarkMichael was getting at was disabling the add-ons in outlook:


Manage COM add-ins and untick all and see if the problem still exists?
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I am having the same problem with a new Exchange 2010 installation.  I have one user (User A) that cannot open the shared calendar for another user (User B), and another user (User C) cannot open User A's calendar.  Every time they click on the shared calendar it will crash Outlook and reopen it.  I have gone through and checked the permissions on the calendar to verify that they were correct.  I have attempted to recreate the Outlook Profile, reinstalled Office, reformatted the computer, tried to use a different computer and all is the same.  
After all of this I found on another post to try to grant full access permissions through Exchange to the user. When I grant full access permissions it resolves the issue.  But this is only a temporary work around.  It is a security risk for other users to have full access permissions to the other's mailbox.  
RobOwner (Aidellio)Commented:
It's the users themselves that have to give access through outlook.  we have shared calendars and the only way it worked was to have the users set up the permissions themselves
See the following:

So far I haven't found a complete fix, but this workaround has temporarily fixed the issue.  I am still trying to do reserach on my end on any other permissions settings that can be set on the server side.  It doesn't appear to be a client issue, but instead is a server issue.  In my case it doesn't matter if you sign on to different computers/profiles, it will still crash unless you do the full access rights.  

Any Exchange experts have any ideas on anything to try?

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I have Exchange 2010 and I have the same problem...

Any ideas please?
jnoaubreyAuthor Commented:
The B grade does not reflect on the expert, as there is no adequate solution, the problem obviously lies with Microsoft. But since there is no fix, jst a workaround (that does not work for my co-worker) i cannot award an Excellent rating
I have a similar problem.  A user added someone else's shared calendar to their Outlook and now it crashes whenever she clicks on the claendar button.  
So is there any way to go into a setting or registry or something and remove the shared folder request from within Outlook so it doesn't open it?  
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