Programmaticaly disable IE compatibility mode

<head> 
  <!-- Mimic Internet Explorer 7 --> 
  <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" > 
  <title>My Web Page</title> 
</head> 

other options (old and new) include:IE=5, IE=7, IE=8, or IE=edge

(edge equals highest mode available)