Failure Audit. Computer locks

[Scott]

I have been haveing a problem with my computer locking up.
Even Ctrl/Alt/del don't work am haveing to reboot.
I hope someone can point me in the right direction to
fixing this problem. Cause the @#$##$ thing does this
about 25 times a day :(
The error that shows up in:

controle panal/administrative tools/event
viewer/Security/Failure Audit.

this is the error report in event properitys.
================================================== =====
Event Type: Failure Audit
Event Source: Security
Event Category: Detailed Tracking
Event ID: 599
Date: 7/5/2003
Time: 11:01:57 AM
User: GOWL1\Ole Tom Cat
Computer: GOWL1
Description:
Unprotection of auditable protected data.
Data Description: Enterprise
Credential Set
Key Identifier: cc96af3f-7db7-4505-b4a4-
9be76f95b35f
Protected Data Flags: 0x0
Protection Algorithms: 3DES-168 , SHA1-160
Failure Reason: 0x8009000B


For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
--------------------------------------------------------
When I go to details this is what I get:
There is no additional information about this issue in the
Error and Event Log Messages or Knowledge Base databases
at this time. You can use the links in the Support area to
determine whether any additional information might be
available elsewhere.
Not much help;)
================================================== =======

Any help is greatly app.

Scott