[Dougrun]

seems to be this:

              {if $config.Product_Notifications.prod_notif_enabled_B eq 'Y'  && $product.avail eq 0}
                {assign var="show_notif_B" value="Y"}
              {/if}

if I drop the " && $product.avail eq 0", it shows, or if i change it to "$variantid.avail eq 0" it shows. but then it shows even if a variant thats in stock is selected. i'll live with i that way.