Popup comments not showing in Single.php?

HI,
i’m trying to set up a link to show comments in single.php,

I added
<?php comments_popup_script();?>
<?php comments_popup_link(‘No Comments »’, ‘1 Comment »’, ‘% Comments »’); ?>

iin index.php and works just fine it shows the comments link with the # of comments, I added it to single.php and it is not working.

I tried renaming index.php to single.php and the link shows in index.php and not in single pages , ..weird…
I also have the permalink and permalink it’s just fine. i’m pulling my hair out with this one ??