Page 94. Hello, people. I have a question. I got a message when I try to connect to a database.

Configure data Source -> it shows exsting data source.
                      -> I choose a data source.
                      -> clich next
But
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Database schema could not be retrieved for this connection.
Please make sure the connection setting are correct and
this database is online.

An error has occured while establishing a connection to the
server. When connecting to SQL Server 2005, this failure
maybe caused by the fact that under the default setting SQL
server does not allow remote connections.

(provider: Named Pipes Provider, error: 40 - Could not open
a connection to at Data Object Support (xxx,x)

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I have no idea what that mean. Please someone translate or explain to me