I have a major problem with Outlook 2007 (SP2) repeatedly crashing. I am on Vista Home Premium. I have reinstalled Outlook to no effect; I have tried repairing the .pst file; I have tried a new profile. But it still crashes, usually after a few minutes. This is the error message:

Problem signature:
Problem Event Name: APPCRASH
Application Name: OUTLOOK.EXE
Application Version: 12.0.6535.5005
Application Timestamp: 4bf5c678
Fault Module Name: ntdll.dll
Fault Module Version: 6.0.6002.18005
Fault Module Timestamp: 49e03821
Exception Code: c0000005
Exception Offset: 000666ab
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 2057

Additional information about the problem:
LCID: 1033
Brand: Office12Crash
skulcid: 1033

Can anyone help please? Thanks