When I try to run GPUPDATE, it hangs there and eventually says it has stopped
responding. If I try to run RSOP it also stops responding. When I try to shut
down or log off, I get stuck at Logging Off, I have left it for hours. I
eventually have to power off the machine to get it back up.

I have the following errors in the event logs

Log Name: Application
Source: Group Policy Scheduled Tasks
Date: 3/27/2009 8:36:43 AM
Event ID: 4099
Task Category: (2)
Level: Warning
Keywords: Classic
User: SYSTEM
Computer: IT1.community.com
Description:
The client-side extension could not log RSoP data because it failed with
error code '0x8004401e unknown-message-text'.
Event Xml:
Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"
System
Provider Name="Group Policy Scheduled Tasks" /
EventID Qualifiers="34305"4099/EventID
Level3/Level
Task2/Task
Keywords0x80000000000000/Keywords
TimeCreated SystemTime="2009-03-27T13:36:43.000Z" /
EventRecordID1610/EventRecordID
ChannelApplication/Channel
ComputerIT1.community.com/Computer
Security UserID="S-1-5-18" /
/System
EventData
Data0x8004401e unknown-message-text/Data
/EventData
/Event

Log Name: Application
Source: Microsoft-Windows-Winlogon
Date: 3/26/2009 5:03:41 PM
Event ID: 6005
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: IT1.community.com
Description:
The winlogon notification subscriber GPClient is taking long time to
handle the notification event (Logoff).
Event Xml:
Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"
System
Provider Name="Microsoft-Windows-Winlogon"
Guid="{DBE9B383-7CF3-4331-91CC-A3CB16A3B538}" EventSourceName="Wlclntfy" /
EventID Qualifiers="32768"6005/EventID
Version0/Version
Level3/Level
Task0/Task
Opcode0/Opcode
Keywords0x80000000000000/Keywords
TimeCreated SystemTime="2009-03-26T22:03:41.000Z" /
EventRecordID1585/EventRecordID
Correlation /
Execution ProcessID="0" ThreadID="0" /
ChannelApplication/Channel
ComputerIT1.community.com/Computer
Security /
/System
EventData
DataGPClient/Data
DataLogoff/Data
BinaryC8075701/Binary
/EventData
/Event

Log Name: Application
Source: Microsoft-Windows-Winlogon
Date: 3/26/2009 5:02:40 PM
Event ID: 6006
Task Category: None
Level: Warning
Keywords: Classic
User: N/A
Computer: IT1.community.com
Description:
The winlogon notification subscriber GPClient took 600 second(s) to handle
the notification event (EndShell).
Event Xml:
Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"
System
Provider Name="Microsoft-Windows-Winlogon"
Guid="{DBE9B383-7CF3-4331-91CC-A3CB16A3B538}" EventSourceName="Wlclntfy" /
EventID Qualifiers="32768"6006/EventID
Version0/Version
Level3/Level
Task0/Task
Opcode0/Opcode
Keywords0x80000000000000/Keywords
TimeCreated SystemTime="2009-03-26T22:02:40.000Z" /
EventRecordID1582/EventRecordID
Correlation /
Execution ProcessID="0" ThreadID="0" /
ChannelApplication/Channel
ComputerIT1.community.com/Computer
Security /
/System
EventData
DataGPClient/Data
Data600/Data
DataEndShell/Data
BinaryC8075701/Binary
/EventData
/Event
--
Chris Millette
MCP/Network Administrator
Community Bank & Trust