Previewing ASP.NET/PHP pages in Expression Web 2 may produce Errors

Problem When you try to preview an ASPX or PHP page in Expression Web 2, which uses the built-in Microsoft Expression Development Server, you may receive one of the following two errors: The XML page cannot be displayed Cannot view XML input using style sheet. Please correct the error and then click the Refresh button,…

Help Menu displays XML

Problem:  When you open the help menu in Expression Web it displays XML Resolution:  This is caused by the username containing special characters.  The username used in this example is "steve & kelly".  Any special character will cause this to occur.  To fix this create a new user without special characters.