In the update for 2.3.3.4 it appears that if you are not upgrading from the prior version that a bit of code was left out. I could have missed it but just in case here it is.
<!-- gift card modification //-->
<tr>
<td colspan="2"><?php echo tep_draw_separator('pixel_trans.gif', '1', '10'); ?></td>
</tr>
<tr>
<td class="main"><?php echo TEXT_PRODUCTS_GIFT_CARD; ?></td>
<td class="main"><?php echo tep_draw_separator('pixel_trans.gif', '24', '15') . tep_draw_checkbox_field('gift_card', '1', ($pInfo->products_gift_card == '1') ? true : false) . TEXT_PRODUCTS_GIFT_CARD_INFORMATION; ?></td>
</tr>
<!-- end of gift card modification //-->
This little piece of code kept me from being able to even add gift card as an option in the admin panel. It tells you where to put it in 'admin/categories' if you go to the previous 2.1 version.
Hope this helps others as it certainly prevented me from having to remove it after the entire install was done completely.