[SOLVED] Weird box showing up in all posts.

www.alhousedems.com

First off, please click on the link to see what I'm talking about. Its kinda hard to describe what it is exactly.

I have scoured over the atahualpa options, but no no avail. I know its got to be some errant style somewhere, but damned if I can find it. I am using several plugins, but the only one I can think that might be interfering is "Custom Post Background". Another girl here and I were looking over it and think that maybe the image is somehow getting populated in the page background and the actual post, but I have removed all the redundancy of the image URL I could find. I've even looked at the source, thinking I'd missed something there.

I just can't seem to get that box to go away. I would even be happy with it just being there, but being my background color(#25537a). I just don't know where the little guy is living in my code.

Please help! It's driving me insane! Thank you in advance!