Drupal Integration Modules: only Admin user (user 0) can do administrative tasks.

In Drupal Integration Modules only Admin user (user 0) can do administrative tasks. It's not possible for users with "administer" role.

If a user with "administer" role go to www.mysite/admin/config/civicrm gets a "You do not have any administrative items" message.

If a user with "administer" role go to www.mysite/admin/config/civicrm/civicrm_group_roles gets a "You are not authorized to access this page."

Users with "administer" role, diferent from user0, should have admin permissions