Kerberos User Stats never get updated

[Matthew.GARRETT@external.total.com]

Folks

Using MIT Kerberos Server on a RedHat Linux Server

Using kadmin
getprinc USERNAME

Principal: XXXX
Expiration date: [never]
Last password change: Mon Jun 15 09:31:19 BST 2009
Password expiration date: Sun Sep 13 09:31:19 BST 2009
Maximum ticket life: 1 day 00:00:00
Maximum renewable life: 0 days 00:00:00
Last modified: Mon Jun 15 09:31:19 BST 2009 (XXXXX)
Last successful authentication: [never]
Last failed authentication: [never]
Failed password attempts: 0

The following stats never seem to get updated
Last successful authentication: [never]
Last failed authentication: [never]
Failed password attempts: 0

Users can login fine and there are no real issues but would be nice to see 
these stats been updated

Does any body have any pointers ?

Thanks

Matthew
 

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