1st machine to have the issue:
Event Type:	Warning
Event Source:	MRxSmb
Event Category:	None
Event ID:	3034
Date:		3/20/2008
Time:		1:00:53 PM
User:		N/A
Computer:	IMG-SVR
Description:
The redirector was unable to initialize security context or query context attributes.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 00080000 00560002 00000000 80000bda
0010: 00000000 c0000072 00000000 00000000
0020: 00000000 00000000 0000047d c0000072



Event Type:	Error
Event Source:	Service Control Manager
Event Category:	None
Event ID:	7013
Date:		3/20/2008
Time:		3:38:57 PM
User:		N/A
Computer:	IMG-SVR
Description:
Logon attempt with current password failed with the following error: 
Logon failure: unknown user name or bad password. 

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.



Event Type:	Error
Event Source:	NETLOGON
Event Category:	None
Event ID:	5788
Date:		3/20/2008
Time:		3:32:14 PM
User:		N/A
Computer:	IMG-SVR
Description:
Attempt to update HOST Service Principal Names (SPNs) of the computer object in Active Directory failed. The updated values were '<UNAVAILABLE>' and '<UNAVAILABLE>'. The following error occurred: 
The security context could not be established due to a failure in the requested quality of service (e.g. mutual authentication or delegation). 

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 32 03 09 80               2..€    




Event Type:	Error
Event Source:	NETLOGON
Event Category:	None
Event ID:	5789
Date:		3/20/2008
Time:		3:32:14 PM
User:		N/A
Computer:	IMG-SVR
Description:
Attempt to update DNS Host Name of the computer object in Active Directory failed. The updated value was 'IMG-SVR.LOCAL.DOMAIN.COM. The following error occurred: 
The security context could not be established due to a failure in the requested quality of service (e.g. mutual authentication or delegation). 

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 32 03 09 80               2..€    




Event Type:	Failure Audit
Event Source:	Security
Event Category:	Logon/Logoff 
Event ID:	537
Date:		3/20/2008
Time:		3:58:05 PM
User:		NT AUTHORITY\SYSTEM
Computer:	IMG-SVR
Description:
Logon Failure:
 	Reason:		An error occurred during logon
 	User Name:	
 	Domain:		
 	Logon Type:	3
 	Logon Process:	Kerberos
 	Authentication Package:	Kerberos
 	Workstation Name:	-
 	Status code:	%7
 	Substatus code:	%8

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.




Domain Controller:
Event Type:	Failure Audit
Event Source:	Security
Event Category:	Logon/Logoff 
Event ID:	539
Date:		3/20/2008
Time:		3:31:23 PM
User:		NT AUTHORITY\SYSTEM
Computer:	NBCSERVER2005
Description:
Logon Failure:
 	Reason:		Account locked out
 	User Name:	administrator
 	Domain:	local.domain.com
 	Logon Type:	3
 	Logon Process:	NtLmSsp 
 	Authentication Package:	NTLM
 	Workstation Name:	IMG-SVR

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Event Type:	Failure Audit
Event Source:	Security
Event Category:	Logon/Logoff 
Event ID:	539
Date:		3/20/2008
Time:		3:23:37 PM
User:		NT AUTHORITY\SYSTEM
Computer:	NBCSERVER2005
Description:
Logon Failure:
 	Reason:		Account locked out
 	User Name:	ADMINISTRATOR
 	Domain:	
 	Logon Type:	3
 	Logon Process:	NtLmSsp 
 	Authentication Package:	NTLM
 	Workstation Name:	\\NBC_STN17

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.