I am running Vista Ultimate with SP1 and Office Ultimate 2007 also with SP1
and all Microsoft updates.

For some time now (prior to installing Vista SP1) Outlook 2007 crashes
several times a day whilst I am reading/writing emails or deleting unwanted
emails and I cannot establish what is causing the problem.  Vista's Event
Viewer gives the following information:-

Log Name:      Application
Source:        Application Error
Date:          19/03/2008 15:01:21
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Study
Description:
Faulting application OUTLOOK.EXE, version 12.0.6300.5000, time stamp
0x4760725d, faulting module mso.dll, version 12.0.6213.1000, time stamp
0x46eafebf, exception code 0xc0000005, fault offset 0x00016558, process id
0xef4, application start time 0x01c889d2171188bc.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
 <System>
   <Provider Name="Application Error" />
   <EventID Qualifiers="0">1000</EventID>
   <Level>2</Level>
   <Task>100</Task>
   <Keywords>0x80000000000000</Keywords>
   <TimeCreated SystemTime="2008-03-19T15:01:21.000Z" />
   <EventRecordID>1361</EventRecordID>
   <Channel>Application</Channel>
   <Computer>Study</Computer>
   <Security />
 </System>
 <EventData>
   <Data>OUTLOOK.EXE</Data>
   <Data>12.0.6300.5000</Data>
   <Data>4760725d</Data>
   <Data>mso.dll</Data>
   <Data>12.0.6213.1000</Data>
   <Data>46eafebf</Data>
   <Data>c0000005</Data>
   <Data>00016558</Data>
   <Data>ef4</Data>
   <Data>01c889d2171188bc</Data>
 </EventData>
</Event>

Every crash produces the same event ID and the same error messages.

Can anyone please offer a solution to this problem?