One page uses IE .css file, another doesn't...

I have setup Conditional Stylesheets on my site and have created an ie.css file for all IE versions. In it, I have the following code:

#footer {
  code: red;
}

In my site's main .css file, I have the following code:

$footer {
  ...
  color: #ffffff;
  ...
}

The homepage of my site shows white text in the footer, while the about page shows red text in the footer. Studying the code (or trying to) with IE's Dev Toolbar shows that the homepage gets the footer color from the main .css file, while the about page gets it from the ie.css file...

Any ideas why the homepage wouldn't be seeing the ie.css file?