AND/OR logic error in Userreference Access function

OK, the problem is definitely in this function. I'll get back to it in a little bit, but it may make enough sense for you to correct where an OR isn't doing what I think it should. I'm dyslexic and I swear that's why I can't do a damn thing with ANDs and ORs.

<pre>
function userreference_access_node_grants($account, $op) {
  $grants = array();
  switch ($op) {
    case 'view':
      if (variable_get('userreference_access_na_view', TRUE) || user_access('view all userreference access content')) {
        $grants['userreference_access'] = array(1);
      }
      else {
        $grants['userreference_access_nodes'] = userreference_access_nids($account, TRUE);
      }
      break;
    case 'update':  // aka edit
      if (user_access('edit all userreference access content')) {
        $grants['userreference_access'] = array(1);
      }
      else {
        $grants['userreference_access_nodes'] = userreference_access_nids($account, TRUE);
      }
      break;
    case 'delete':
      if (user_access('delete all userreference access content')) {
        $grants['userreference_access'] = array(1);
      }
      elseif (variable_get('userreference_access_na_dlet', FALSE)) {
        $grants['userreference_access_nodes'] = userreference_access_nids($account);       
      }
      break;
  }
  return $grants;
}
</pre>

Resolution