title: build failed executing nant
body: <p>I've got a nant build script (.86 beta) and it is telling me this:</p>
  
  <blockquote>
    <p>BUILD FAILED</p>
    
    <p>Failed to initialize the 'Microsoft
    .Net Framework 2.0'  target
    framework.</p>
    
    <p>The process cannot access the file
    'C:\Users\cconway\AppData\Local\Temp\tmp25E3.tmp'
    because it is being used by another
    process.</p>
  </blockquote>
  
  <p>This file does not even exist on my machine. Does anyone know the cause of this? Rebooting seems to allow me to run the script once successfully, but every time after that I get this message (though the name of the tmp file changes per reboot).</p>
  
  <p>Thanks!</p>