[Logician]

edit MOD\user.php (Notice this is the file under MOD dir)

find:

PHP Code:

 $DB_site->query("UPDATE user SET usergroupid=$bangroup[usergroupid] WHERE userid=$banuser[userid]"); 


Replace it AS:

PHP Code:

 $DB_site->query("UPDATE user SET usergroupid=X WHERE userid=$banuser[userid]"); 


Change X with any user group id you want.

Be careful about writing the correct usergroup id here! We dont want them become Site Admins accidently, do we?

Enjoy..
Logician