title: How do I get a code window to split vertically in Visual Studio 2008? (not HTML mode)
body: <p>In Visual Studio 2008, it seems that <strong>Window -> Split</strong> only gives me a horizontal split, and <strong>Window -> New horizontal tab group</strong> does not allow me to edit the same file in both panes.</p>
  
  <p>Note that I am talking about C# code windows, <strong>not</strong> HTML editing mode.</p>
  
  <p>I want to edit the same file in two horizontally arranged panes.</p>
  
  <p>Is this possible? Free add-ons are fine.</p>
  
  <p><strong>Edit:</strong> I have CodeRush Express installed, and it seems to have done <em>something</em> to my code window borders. </p>
  
  <p><strong>Edit #2:</strong> It's not CodeRush. I tried on VM with no CodeRush, and I have exactly the same issue.</p>