title: "No Source Available" - Visual Studio Debugging (even when symbols have loaded)
body: <p>I have set up <a href="http://en.wikipedia.org/wiki/Microsoft_Visual_Studio#Visual_Studio_2012" rel="nofollow">Visual&nbsp;Studio&nbsp;2012</a> Professional to download debug symbols. It is set up correctly and the symbols have downloaded.</p>
  
  <p>I get to the line of code I wish to step into:</p>
  
  <pre><code>bool result = Membership.ValidateUser("user", "password");
  </code></pre>
  
  <p>I right click on it and choose <code>step into specific--&gt;Membership.ValidateUser()</code></p>
  
  <p>Then a tab opens in Visual Studio saying:</p>
  
  <blockquote>
    <p>No Source Available - There is no source code available for the current location</p>
  </blockquote>
  
  <p><code>Membership.ValidateUser()</code> is in the <code>System.Web.Security</code> namespace which is in the <code>System.Web.dll</code>. If I open up the Modules window I can clearly see that the symbols for this assembly have been downloaded.</p>
  
  <p>If the symbols are there, why am I not able to step into the source code?</p>