Vista - Outlook 2007 & Exchange 2003

Hi

Wondered if anyone can help.

I have been running Outlook 2007 on an Exchange 2003 Server for about a year at home and at work.

Home and Work setup matches
SBS 2003 Exchange 2003
Client - Windows Vista Ultimate and Office 2007 Ultimate.

The problem is as follows

At home Outlook opens and after a few seconds crashing with a Not Responding error then I have to force it to close.
Will not open in safe mode

Work does the same thing

This has only started in the last week or so.

All machines are running all updates and service packs.

I have deleted the profiles and recreated but when creating a new profile it crashes when checking names.

If I setup as a pop3 client it works fines.


If I use Outlook 2003 it works fine.

Please can anyone help


Thanks in advance

Peter