sub www_mech_deactivate {
  my $self = shift;
  my $email = shift;

  my $uid = $self->get_uid_from_email($email);
  my $path = $self->{'cfg'}->param("paths.subscription_management_page
+");
  $path =~ s/UID/$uid/;
  $self->{'agent'}->get($path);

  # this works to subscribe person to all lists:
  $self->{'agent'}->submit_form(
               form_number => 2,
               fields      => {
            'newsletters[65]' => '65',
            'newsletters[34]' => '34',
            'newsletters[17]' => '17',
            'newsletters[71]' => '71',
               }
           );

  # But all of these attempts fail . . . 
  $self->{'agent'}->untick('newsletters[17]');
  $self->{'agent'}->untick('newsletters[65]','');
  $self->{'agent'}->untick('newsletters[34]','checked');
  $self->{'agent'}->untick('newsletters[71]','71');

  $self->{'agent'}->submit_form( form_number => 2 );

  return;
}
[download]

UPDATE:

Thanks Wind, I just tried that, and still I get the following errors:

No checkbox "newsletters[17]" for value "17" in form at /home/hesco/li
+b/CMS/Drupal/SimpleNews.pm line 70
No checkbox "newsletters[34]" for value "34" in form at /home/hesco/li
+b/CMS/Drupal/SimpleNews.pm line 71
No checkbox "newsletters[71]" for value "71" in form at /home/hesco/li
+b/CMS/Drupal/SimpleNews.pm line 72
No checkbox "newsletters[83]" for value "83" in form at /home/hesco/li
+b/CMS/Drupal/SimpleNews.pm line 73
[download]

And to give some sense of the html I'm interacting with:

<div  class="form-item form-option" id="edit-newsletters-34-wrapper"> 
    <label class="option" for="edit-newsletters-34"><input type="check
+box" name="newsletters[34]" id="edit-newsletters-34" value="34"  chec
+ked="checked"  class="form-checkbox" /> Guests</label>  </div>
[download]

Can anyone please offer some additional guidance, please?

-- Hugh

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