title: Username setup in TortoiseHG
body: <p>I'm trying to set up a local repository with TortoiseHG.  It's not linked to any remote repository; I just want to be able to manage changes on my own box.</p>
  
  <p>Creating the repository went fine, but when I go to commit, I get an error:</p>
  
  <blockquote>
    <p><strong>Commit: Invalid username</strong></p>
    
    <p>Your username has not been configured.</p>
    
    <p>Please configure your username and try again.</p>
  </blockquote>
  
  <p>It very helpfully pops up a username configuration dialog.  I fill in my username, and the rest of the options on that page just in case, and close it, try again... same error.  I've given it a username, and it remembers it, but it still won't commit.</p>
  
  <p>What am I missing?</p>