Outlook for Mac Keeps Crashing

Microsoft Error Reporting log version: 2.0

Error Signature:
Exception: EXC_BAD_ACCESS
Date/Time: 2012-08-17 16:34:41 -0500
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: 0x0025dd47
Blame Module Name: OutlookCore
Blame Module Version: 14.2.3.120616
Blame Module Offset: 0x0025dd47
Application LCID: 1033
Extra app info: Reg=en Loc=0x0409
Crashed thread: 5

If he launches Outlook and waits 5-10 minutes, it will crash.  On a different MacBook, I created a new identity and setup Outlook to access the same user's mailbox.  After waiting some time, the same error began taking place.  While it doesn't usually happen that quickly.  It does seem to happen within an hour of launching Outlook.  Any help or suggestions are appreciated.