Finding Account Lockout Source

From: PattyMac (pmacarthur_at_jenner.com)
Date: 07/30/03 

Date: Wed, 30 Jul 2003 11:55:02 -0700

Recently changed a password on an account. Now that
account keeps locking out every 10 minutes or so. How can
I find out the source of the problem? My guess is there's
a machine or service somewhere using that ID, but I don't
know where. Can I find the IP or Machine name that's
using that ID?

Thanks for any feedback.