Question about Outlook Express

Hello All,

This is an issue I have been dealing with for the past week and I still have not been able to find a solution for it.

What is happening is one of our executives is trying to share his calendar with another employee. Whenever he tries to access the permissions for the calendar the Folder Properties: Calendar dialog box opens then after a few moments Outlook crashes and displays this error:

Microsoft Error Reporting log version: 2.0

Error Signature:

Exception: EXC_BAD_ACCESS

Date/Time: 2012-07-20 00:27:37 +0000

Application Name: Microsoft Outlook

Application Bundle ID: com.microsoft.Outlook

Application Signature: OPIM

Application Version: 14.2.3.120616

Crashed Module Name: OutlookCore

Crashed Module Version: 14.2.3.120616

Crashed Module Offset: 0x00050058

Blame Module Name: OutlookCore

Blame Module Version: 14.2.3.120616

Blame Module Offset: 0x00050058

Application LCID: 1033

Extra app info: Reg=en Loc=0x0409

Crashed thread: 24

When I first saw this happen I believed that it was a client issue, but after further investigation we noticed that while trying to share his calendar within the OWA he also received an error. This leads me to believe that this issue has something to do with his account permissions on the Exchange server, or his account on the exchange server has been corrupted somehow.The Calendar is the only issue. Everything else (Mail, Mail Sharing, Calendar actions besides sharing) all function properly. Also, All other Mailboxes and Outlook Clients have no issues.

We Are running Exchange 2010.

If anyone has any ideas on what may be causing this any help would be greatly appreciated.

Thanks