Not sure if this is the right forum, please let me know if not.
My site (dnatestindex.com) worked fine six months ago. I have not looked at it since then until today. Now it appears that on some pages (but not all) the right column gets pushed down below the bottom of the main content area. The problem appears in Firefox and IE. Today I upgraded to the latest WP version, that did not help. I think I'd like to change themes at some point, but for now I wonder if there is a fix or workaround.
So...I'm sure the problem is with the CSS, but I don't know CSS well enough to track it down. I'm hoping someone can take a quick look and tell me "ah, here's your problem!"