title: Runtime error 438 in Word for OS X
body: <p>I have a Word document with macros that I am trying to open in Word 2011 for OS X.
  I am getting the error "Runtime 438".  I select to debug the macro and Word highlights the following code that is NOT in my macro:</p>
  
  <pre><code>private Sub Document_Open()
    ActiveDocument.SelectContentControlsByTitle("Today").Item(1).Range.Text = Form(Date, "m/d/yyy")
  End Sub
  </code></pre>