title: Adding SQL Login does not work
body: <p>I'm receiving this error message in Visual Studio 2010:</p>
  
  <blockquote>
    <p>Cannot open database \"Northwind\" requested by the login. The login
    failed.\r\nLogin failed for user 'Mike\Mike Simpson'</p>
  </blockquote>
  
  <p>When I try to add the user, which is me. Then SQL server says </p>
  
  <blockquote>
    <p>Msg 15063, Level 16, State 1, Line 1 The login already has an account
    under a different user name.</p>
  </blockquote>
  
  <p>Here is my connection string:</p>
  
  <blockquote>
    <p>"Data Source=Localhost;Initial Catalog=Northwind;Integrated Security=True"</p>
  </blockquote>
  
  <p>I'm using SSMS not SQL Server express.
  I don't know what else I should do. This application used to work before I zipped it up.</p>