title: stepping into msvcr100d.dll has stopped working after VS 2010 SP1
body: <p>It appears that I can no longer step into run time library calls. This used to work before SP1, now it only prints, e.g.:</p>
  
  <pre><code>'thread_test.exe': Loaded 'C:\Windows\SysWOW64\msvcp100d.dll', Symbols loaded (source information stripped).
  'thread_test.exe': Loaded 'C:\Windows\SysWOW64\msvcr100d.dll', Symbols loaded (source information stripped).
  </code></pre>
  
  <p>Searching using Google has not revealed anything...revealing.</p>