IE8 crashing a lot!

IE8, on my wife's PC, is crashing a lot!  And doing just simple things, like clicking on links.  Clicking a link shouldn't cause the browser to crash.  Here's the error captured from the event log:

Log Name:      Application
Source:        Application Error
Date:          6/26/2009 10:01:55 PM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      ENTERPRISE
Description:
Faulting application iexplore.exe, version 8.0.6001.18702, time stamp 0x49b3ad2e, faulting module unknown, version 0.0.0.0, time stamp 0x00000000, exception code 0xc0000005, fault offset 0x00000000, process id 0x13f4, application start time 0x01c9f6dac980e52a.
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="2009-06-27T04:01:55.000Z" />
    <EventRecordID>169218</EventRecordID>
    <Channel>Application</Channel>
    <Computer>ENTERPRISE</Computer>
    <Security />
  </System>
  <EventData>
    <Data>iexplore.exe</Data>
    <Data>8.0.6001.18702</Data>
    <Data>49b3ad2e</Data>
    <Data>unknown</Data>
    <Data>0.0.0.0</Data>
    <Data>00000000</Data>
    <Data>c0000005</Data>
    <Data>00000000</Data>
    <Data>13f4</Data>
    <Data>01c9f6dac980e52a</Data>
  </EventData>
</Event>