This is a little difficult to describe, but the bottom post of the last page of the Philippa Boyens talks "The Hobbit" and some of the changes thread carries on out of the post section and overlaps with the bottom of the actual page (so the writing that says "Who is Online" etc that is at the very bottom of each page overlaps with the words in the final post and in fact the final post disappears off the bottom of the page). It makes it impossible to read. I thought it was just an anomaly when I noticed it a few days ago, but it is still doing it and Wilko sees it on his computer too.
I took a screencap of it, which can be found here - notice how the background has dark stripes on it too, which is odd. Another thing is that if you leave the page open for a while, the last post just disappears entirely and the bottom of the page goes dark, as seen here. (It actually looks as though the post disappearing off the bottom of the page is a repeat of the previous post - but it's a little hard to tell. There's definitely something wrong with the display.)
I'm looking at it in Firefox - Wilko's just checked it in Internet Explorer and it appears to be behaving itself, which indicates it may be a browser problem. However, this is the only thread I've noticed this problem in.