I sent a page like that to Lee, a while back. I forgot to tell hime I was using Mozilla Firefox. Lee would probably need the url and the techs will correct it.
In both Internet Explorer 7 and Firefox 2.0 I have noticed that the page is randomly loaded incorrectly, displaying this boundary issue. Perhaps better for site support, but I haven't found any way of reproducing it on demand. Anyhow, I promise this will be my last one for now.