Comments are not displaying in wordpress 3.1

Im running Wordpress 3.1 and its showing that there are comments (ie: 3 comments) but when you click into the single blog post they don't appear but the comment form appears.

Im not sure whether its a template issue or something's not correct in the functions.php.

I have the multi site function running for multiple blogs.

Anyone else having this problem and or have a s开发者_如何学Goolution?

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It has to be template issue, make sure that you have comments.php file present in your theme directory. You may want to copy from default theme too. The functions.php has nothing to do with that though.