Clickable thumbnails issue

Hi all

I have the thumbnails on my blog linking directly to pages. The problem is that only the top part of the images are actually clickable. I’m having trouble figuring out why the whole thumbnail isnt a “hot spot”.

Also, if you look at the thumbnail in the post at the bottom you’ll notice that the whole thumbnail IS clickable.

any ideas?
thanks 🙂

http://supertv.jp/