well it did nothing for me. I comment out in photo.html.php
<code>
$(".g-fullsize-link").click(function() { $.gallery_show_full_size(<?= html::js_string($theme->item()->file_url()) ?>, full_dims[0], full_dims[1]); return false; });
</code<
and in page.html.php
<code>
<?= $theme->script("gallery.show_full_size.js") ?>
</code>
Still brings up 2 boxes with shadowbox module enabled