title: Why is Visual Studio 2008 always rebuilding my whole project?
body: <p>I have a Visual Studio project with about 60 C++ source files. I can do a build, and it completes without errors. But if I immediately hit F7 again, it always re-compiles about 50 of the source files. It doesn't re-compile all of the files, which is strange.</p>
  
  <p>I have 'Enable minimal rebuild' (/Gm) set. Any ideas why it might be doing this?
  None of the files have a Modified Date in the future.</p>