title: SQL Server 2008 Windows Auth Login Error: The login is from an untrusted domain
body: <p>When attempting to connect to a SQL Server 2008 Instance using Management Studio, I get the following error:</p>
  
  <blockquote>
    <p>Login failed. The login is from an
    untrusted domain and cannot be used
    with Windows authentication.
    (Microsoft SQL Server, Error: 18452)</p>
  </blockquote>
  
  <p>I can login using SQL Authentication without problem.  I've been getting this error all of a sudden.  I have Mixed Mode Authentication turned on.  </p>
  
  <p>Does anyone have any experience with this?</p>
  
  <p>Additional Info:
  64-bit version of SQL
  Enterprise Edition
  On Windows 2003 Server</p>