The backcolor of the thread-page navigation bars at top and bottom of pages are different. At first, I thought I had to go back to the top of the page to go to the next page of the thread, but later saw it was there at the bottom of the page, just in a different (and less noticeable) color.
Top of page looks like this:
Bottom of page looks like this (different color):
I almost didn't see the 1 2 | Next> at the bottom of the page. I'd suggest making the background color the same as used on the top of the page.