user on windows 7 laptop keeps getting prompt for credentials - other users on same machine ok

I have a windows 7 pro machine on a windows 2003 domain.  I have a single user that when logging in, the logon script does not run and they cannot access network shares because the system keeps prompting for credentials.   They get the "The system detected a possible attempt to compromise security" message.

I checked the user - Des is not selected for the user.
I have removed the account and removed the  profile and registry entry for the profile (on this laptop).
I have tried other user accounts on this machine and they work fine.
user is not locked out or disabled.
I have removed the computer from the domain and re-added it.
Nothing seems to work.

I cannot figure out why this one account seems to have an issue.  

Any help is greatly appreciated.
schristoAsked:
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schristoConnect With a Mentor Author Commented:
I finally figured it out.  It was the MaxTokenSize issue.

Created registry key on computer
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\Kerberos\Parameters

Entry: MaxTokenSize
Data type: REG_DWORD
Value: 48000

rebooted --- This corrected the issue
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web_trackerCommented:
I would just name the user profile... user_old, then recreate the user and transfer their data to the new user profile.
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Pramod UbheCommented:
go to start > run > type control keymgr.dll and hit enter
check if all the saved credentials are correct.
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schristoAuthor Commented:
As stated in my original post.
I have completely deleted the user account/profile from the computer, so renaming it does not help.
I have also checked the credentials manager -- windows credentials have been disabled by your system administrator.   Certificate- based credentials -- have been disabled by your system administrator.  No generic credentials.
So nothing is stored.  This is the same for everyone that uses this machine.

All accounts that I have tried work fine on this machine except for one and that is the user that is supposed to use this machine.
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schristoAuthor Commented:
I figured it out myself
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