I found the problem in /usr/local/lxlabs/kloxo/httpdocs/theme/htmllib.php
Found:
<?php
if ($checked !== 'disabled') {
?>
<input <?= $filteropacitystring ?> id="ckbox<?= $unique_name ?><?= $rowcount ?>" class="ch1" type="checkbox" <?= $checked ?> name="frm_accountselect" onclick="hiliteRowColor('tr<?= $unique_name ?><?= $rowcount ?>','tablerow<?= $count ?>',document.formselectall<?= $unique_name ?>.selectall<?= $unique_name ?>)" value="<?= $obj->nname ?>"> <?= $filteropacitystringspanend ?>
<?php
}
?>
and replace it with:
<input <?= $filteropacitystring ?> id="ckbox<?= $unique_name ?><?= $rowcount ?>" class="ch1" type="checkbox" <?= $checked ?> name="frm_accountselect" onclick="hiliteRowColor('tr<?= $unique_name ?><?= $rowcount ?>','tablerow<?= $count ?>',document.formselectall<?= $unique_name ?>.selectall<?= $unique_name ?>)" value="<?= $obj->nname ?>"> <?= $filteropacitystringspanend ?>
and it will work like a charm
