Roy, this doesn't solve the problem, and it might not work for you, but I have noticed that when I use the wafishbox.com address I have the same problem you describe. But if I use wafishbox.forumotion.com it looks the same as always.
Try that and let us know if it makes a difference for you.
Edited to add that I was using Firefox. When I tried IE, the overlap happened in both. :scratch: