Odd image behavior in HTML tables

I’ve noticed this on a couple of WordPress sites I’ve set up, and was wondering if anyone might have a reason for the behavior and/or a fix for it.

I’m using WP 3.4.2 (Cyberchimp’s Neuro Pro theme), and on a couple of pages of the site I’ve used HTML to display a series of images in a table. For some reason, a couple of images are displaying as tiny versions of themselves, almost like a thumbnail.

This is odd to me because all of the images are the same size and I’ve included height and width attributes in all of the image tags.

Here’s the URL: https://security-net.com/web/site/?page_id=12

Does anyone have a guess on why this is happening? Thanks in advance.

Don