error 404 with thickbox_ie.css

When I visit some internal pages with IE I recive 404 errors with the thickbox_ie.css file.

I have found this code:

drupal_set_html_head('<!--[if IE]><link type="text/css" rel="stylesheet" media="all" href="'. $path .'/thickbox_ie.css'.'" /><![endif]-->');

That should be:

drupal_set_html_head('<!--[if IE]><link type="text/css" rel="stylesheet" media="all" href="/'. $path .'/thickbox_ie.css'.'" /><![endif]-->');

See the / before the $path.

This change solves all my 404 errors