Windows 8 IIS does not load stylesheets and images in asp.net app

I just installed Windows 8 on my computer and tried to load my ASP.net application. The page loads with no problems. But none of the images or stylesheets that are located in the App_Themes directory load. I do have a separate folder that has images in it and they do load. I think it is some security issue but I can’t find out what it could be. If I deploy the site to my dev 2008 R2 box then the site loads correctly, but it doesn’t load correctly on my Windows 8 box.