Comments only half working

Trying to figure out the problem here… Comments work in that people can comment and those comments show up on the specific page for that post. However, in the main page, after each post its says there aren’t any.

It would be easier to explain if you see for yourself. http://www.miabifilms.com. When reading from the main page, it says there are no comments (Be the first to comment!), however, if you click the title of the post, it’ll take you to that page and display the comments that are in fact there.

I do use the plug-in Spam Karma, but I turned it off and the problem still existed.

I believe this is a wordpress problem because it seems to be happening on every one of my themes.

Hoping this is something I can just turn on or off.

Any help would be greatly appreciated. Thanks.