I've just downloaded VB 2005 Express and SQL server 2005 express.Built database and tryingto connect and open DB.My code is:Public p_conFirst As New SqlConnection() p_conFirst.ConnectionString = "Server=bk;Database=First;Trusted_Connection=True;"p_conFirst.Open() 'error 4060I was trying different connectionStrings,reinstallSql server and Visual Basic but have the same massage:"Cannot open database.Login failed".Maybe somebody has answerThanks,Boris