Links in drop-down menu not working in IE

The links i开发者_运维技巧n the "on sale" section of each of the top tab drop-downs on this website do not work at all in IE. Any ideas?

First, I'd suggest running this through the W3C markup validator as you have a number of invalid XHTML elements. I think the culprit may be an 's' element in your On Sale div. That element is deprecated - you should use the 'del' instead for strikethrough. There are also a couple of places where you're setting the display attribute to 'hidden' when you should be setting it to 'none'.