Vista Ultimate Profile Load Failures

[TechLarry]

At the end of the work day I restart my machine and let it load up to the login prompt and sit there.

If I log in right away, all is well.

However if I let it sit overnight and then login, it fails to load my profile and instead loads into a new temporary profile.

This tells me something is making an alteration while the computer is sitting at the login prompt for a long period of time.

There is an entry in the logs, but as usual you really can't determine anything from them. The log states:

"Log Name: Application
Source: Microsoft-Windows-User Profiles Service
Date: 3/29/2007 8:06:04 AM
Event ID: 1502
Task Category: None
Level: Error
Keywords: Classic
User: HomeLab-DT1\Larry
Computer: HomeLab-DT1
Description:
Windows cannot load the locally stored profile. Possible causes of this error include insufficient security rights or a corrupt local profile.

DETAIL - The process cannot access the file because it is being used by another process.
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}" EventSourceName="profsvc" />
<EventID Qualifiers="49152">1502</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2007-03-29T12:06:04.000Z" />
<EventRecordID>4317</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>Application</Channel>
<Computer>HomeLab-DT1</Computer>
<Security UserID="S-1-5-21-2962809720-1657744421-2731689922-1000" />
</System>
<EventData Name="EVENT_FAILED_LOAD_LOCAL">
<Data Name="Error">The process cannot access the file because it is being used by another process. </Data>
</EventData>
</Event>"

Sorry for the XML. That's what the stupid copy button does

I can only think of a few apps that would do anything while the machine is sitting at the Login prompt:

1. NOD32.
2. The windows backup program, which runs at 6pm nightly (after the restart).
3. PhraseExpress.

This is a production machine so it's hard for me to take it down for troubleshooting and I wanted to see if I could narrow things down a bit first.

Thanks