I use NT Authentification to log onto the SQL servers my company uses. On one of these servers it then shows me as a different user name, All the others know who I am when I log in. Recently the person who the server was showing I was changed their password and I now get the message "Server: Msg 18452, Level 16, State 1. [Microsoft][ODBC SQL Server Driver][SQL Server] Login failed for username '(null)' . Reason: not associated with a trusted SQL server connection" Any ideas??