title: Visual Studio Code Review Difference Window
body: <p>When I was doing C# code reviews at first in VS 2012 I was getting a side by side comparison of the old and new code.
  However now I am getting all code in the same window with red lines for old code and green lines for new code.
  I cannot find the option to change this back to a difference window.
  I know this is a simple issue but any help will be greatly appreciated!</p>