Sort of figured it out.
I don’t know where they came from, but there were duplicate alignment tags scattered throughout the most recent post. That was apparently freaking out the page layout.
So I fixed a few things, got rid of a javascript and replaced it a rotating image script recommended by WordPress. That’s all fine, but my problem still persists. There are still some (seemingly minor) errors, but they seem to be generated mostly by wordpress itself in the code create when adding a post!
I think it’s something more related to the page container or template or something. It’s as if the background is set to a fixed height and doesn’t just continue down to the bottom of the window.
The weird thing is, when I’m previewing my long post with all the photos, the page looks fine.
