I worked through the chapter successfully until I got to page 797, where I displayed the database. (BTW, finding the database to display was not explained, and difficult - I finally found northwnd.mdf in C:\Program Files\Microsoft SQl Server\MSSQL.1\MSSQL\Data.) Once I add the connection and display the "Customers" table, none of the previous examples work - I always get "can't log on" - until I delete and remake the database using 'sqlcmd' as described on page 779.

Every example then works until I connect and display the database table again.

Any ideas as to what I'm doing wrong? Thanks!

Mark