My thumbnails in my lower left and lower right columns are funky.  They frequently blow up and spread a portion of the image across the top of the post.

admin said:

Have you modified the template at all? I'm assuming you mean this is happening on the index page. Do you have a link you can provide to check it out?

You can see it here: http://publicmediatexas.org/ 

Did some modification, but nothing with the thumbs.  Any help would be appreciated.