Mixture --- RICH

Error message

User warning: The following module is missing from the file system: computed_field. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1156 of /home/dolmint/domains/dolmint.com/public_html/includes/bootstrap.inc).
User warning: The following module is missing from the file system: iframe. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1156 of /home/dolmint/domains/dolmint.com/public_html/includes/bootstrap.inc).
User warning: The following module is missing from the file system: upgrade_status. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1156 of /home/dolmint/domains/dolmint.com/public_html/includes/bootstrap.inc).

The mixture control should be kept in full "RICH" position to insure maximum acceleration if it should be necessary to open the throttle again.