MacOS kinit problem

[David Brown]

I recently transfered ownership of a MacOSX 10.5.6 laptop by  
installing a new admin user, after which I deleted the original admin  
user.  The new user is unable to run kinit, getting an error message:

kinit: Unable to initialize kerberos login options: Unable to read  
Kerberos Login preferences.  The file may be missing, inaccessible or  
corrupted.
kinit: Error getting initial tickets: Operation not permitted

kinit works if run with sudo, which shows the file is not missing or  
corrupted, so I guess it is 'inaccessible'.  The protections and  
ownership of ~/Library/Preferences/ 
edu.mit.Kerberos.KerberosLogin.plist look fine.  I guess there must be  
some utility applications or files which are still owned by the  
original admin user and which are protected, does anyone have any idea  
what those might be?