this is really something that is giving me headaches. Last year i had this issue on my joomla site but i managed to sync those tables using a sql query that i dont have anymore.
I really tought that this got solved for good, but yesterday i just noticed that this tables are not sync anymore. The jos_users table have 4967 users and the jos_core_acl_aro have 5135, wich is a big diference.
Im using joomla 1.5.22 and im using 2 components that i suspect it has something to do with this issue: Regreminder ( Notify inactiv users and delete inactiv accounts for a specific time) Unregister (Let the user delete their own account for good)
For now i would like to know a query to run in phpmyadmin so i can see wich data is missing in jos_users since jos_core_acl_aro have more data. Something like comparing this 2 tables and check the data missing. Ive been searching google for this but maybe im not im my lucky day..
Sincerely Daniel Q.