Homepage broken in WinIE6 / Opera 7.2

Hi,

  After some recent change to http://www.w3.org the layout is broken in
WinIE6 and Opera 7.2 for Windows, the footer is rendered inside the
right navbar... see

  http://lists.w3.org/Archives/Public/www-archive/2004May/att-0028/www.w3.org.png_

for a screenshot.

regards.