How can I programmatically disable IE compatibility mode?

If you want the "old" rendering, and no button to show up on the toolbar so that users can switch modes you can use this:

<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)

You probably need to set your DOCTYPE correctly. Check out MSDN's articles on DOCTYPE and Defining Document Compatibility for more info.

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