I generate the following error every time I shut down.  OS is Win7 32bit.  I thought maybe the problem was that I was using 11.0.5, so I uninstalled it, did a CleanWipe, and installed 11.0.6a.  Still getting the same error.  There's also an msiexec.exe error in there, but it comes and goes.  The Symantec error is on every shutdown.  Any idea what's causing it?

Log Name:      Application
Source:        Microsoft-Windows-User Profiles Service
Date:          6/17/2010 8:44:35 PM
Event ID:      1530
Task Category: None
Level:         Warning
Keywords:      
User:          SYSTEM
Computer:      xxxxx
Description:
Windows detected your registry file is still in use by other applications or services. The file will be unloaded now. The applications or services that hold your registry file may not function properly afterwards.  

 DETAIL -
 2 user registry handles leaked from \Registry\User\S-1-5-21-3457670147-962725586-2447221604-1000:
Process 2252 (\Device\HarddiskVolume2\Program Files\Symantec\Symantec Endpoint Protection\Rtvscan.exe) has opened key \REGISTRY\USER\S-1-5-21-3457670147-962725586-2447221604-1000\Software\Symantec\Symantec Endpoint Protection\AV\Custom Tasks
Process 3032 (\Device\HarddiskVolume2\Windows\System32\msiexec.exe) has opened key \REGISTRY\USER\S-1-5-21-3457670147-962725586-2447221604-1000\Software\Microsoft\Windows\CurrentVersion\Explorer

Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-User Profiles Service" Guid="{89B1E9F0-5AFF-44A6-9B44-0A07A7CE5845}" />
    <EventID>1530</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2010-06-18T00:44:35.502919100Z" />
    <EventRecordID>4695</EventRecordID>
    <Correlation />
    <Execution ProcessID="1024" ThreadID="1052" />
    <Channel>Application</Channel>
    <Computer>xxxxx</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <EventData Name="EVENT_HIVE_LEAK">
    <Data Name="Detail">2 user registry handles leaked from \Registry\User\S-1-5-21-3457670147-962725586-2447221604-1000:
Process 2252 (\Device\HarddiskVolume2\Program Files\Symantec\Symantec Endpoint Protection\Rtvscan.exe) has opened key \REGISTRY\USER\S-1-5-21-3457670147-962725586-2447221604-1000\Software\Symantec\Symantec Endpoint Protection\AV\Custom Tasks
Process 3032 (\Device\HarddiskVolume2\Windows\System32\msiexec.exe) has opened key \REGISTRY\USER\S-1-5-21-3457670147-962725586-2447221604-1000\Software\Microsoft\Windows\CurrentVersion\Explorer
</Data>
  </EventData>
</Event>