title: Visual Studio won't open solution file
body: <p>I have a VS project (made by someone else), and when I try to open it on Visual Studio 2008, I get the following error message:</p>
  
  <p>"The selected file is a solution file, but was created by a newer version of this application and cannot be opened"</p>
  
  <p>I would have thought VS was backwards compatible. Is there any way I can open this?</p>