Could this be a silly question? I feel puzzled by it.
I've been using an if IE conditional statement to address some issues in IE6.
In the head section, this is what I have:
<!--[if lt IE 7] > <script type="text/javascript" src="js/ie6.js"></script> < ![endif]-->
Inside the ie6.js file, there is a simple alert. When I remove it from the conditional comment, it works fine. However, in Internet Explorer, the alert does not display. I am testing this on IE 6.0.2900 on Windows XP through Parallels Desktop.