title: ASP.NET Ajax client-side framework failed to load
body: <p>I got this error: </p>
  
  <blockquote>
    <p>ASP.NET Ajax client-side framework failed to load</p>
  </blockquote>
  
  <p>with the error:</p>
  
  <blockquote>
    <p>'Sys' is undefined.</p>
  </blockquote>
  
  <p>The error qppears in IE on the bottom (error message), and appears only when i'm running the site on server.  on my localhost everything works fine.</p>
  
  <p>i moved for new server, and there i have the problem. in my previous server everything was fine. </p>
  
  <p>The problem comes from the SCRIPTMANAGER of the ajax.</p>
  
  <p>what i can to do? somthing in the web.config, or should the host company need to install somthing?</p>
  
  <p>ASP.NET 4, IIS 7.5</p>
  
  <p>The ugly yellow triangle on the IE is not what is disturbing me.. the big problem is that the script manager with the update pannel - dont work !</p>