Hi,
Whoops missed one of my changes to prevent change to the country dropdown.
I set this field to be completed hidden (rather than uneditable) from users as our Magento system controls the country region.
$choices= array(''=>get_string('selectacountry').'...') + $choices;
// SB edited - Hide country drop down menu in user profile to prevent editing
// $mform->addElement('select', 'country', get_string('selectacountry'), $choices);
$mform->addElement('hidden', 'country', get_string('selectacountry'), $choices);
Now remember this will not work for you if you don't have an integrated system for creation/editing of users, such as external database authentication (and enrolment).
Thanks
Steve