In the lightbox, there's the following text at the bottom:

Image x of y < Prev Next > close or Esc Key

Every time I use the lightbox I have serious trouble finding the prev and next links because they look exactly the same as "Image x of y" and are not placed where I would expect them (the prev link on the left of the line, the next link completely on the right).

The only text on that line that's somewhat emphasized is "or Esc Key" and clicking that does exactly nothing.