We have the same website on two servers, a test server and a production server. All files of website are the same on both servers. Both servers are Windows Server 2003 Standard Edition (service pack 2) OS, both use IIS6, & both IIS6's are set for ASP.NET 4.0. The website on the test server displays properly in all browsers. The website on the production server displays properly in all browsers except IE10 & IE11. The style attributes assigned in some of the ASP controls are not being displayed when using these two versions of IE, 10 nor 11. What's the cause of our website not displaying properly in IE10 & IE11?