Css和脚本在用户登录网站- Asp之前不会工作。NET MVC 3网站

I've a asp.net mvc 3 site and i publish it in iis 7.5 (framework 4.0), and the problem is that the css and the scripts don't work util the user log in the website. So:I've a asp.net mvc 3 site and i publish it in i