title: Compilation fails randomly: "cannot open program database"
body: <p>During a long compilation with Visual Studio 2005 (version 8.0.50727.762), I sometimes get the following error in several files in some project:  </p>
  
  <pre><code>fatal error C1033: cannot open program database 'v:\temp\apprtctest\win32\release\vc80.pdb'
  </code></pre>
  
  <p>(The file mentioned is either <code>vc80.pdb</code> or <code>vc80.idb</code> in the project's temp dir.)</p>
  
  <p>The next build of the same project succeeds. There is no other Visual Studio open that might access the same files.</p>
  
  <p>This is a serious problem because it makes nightly compilation impossible.</p>