windows 2008 server r2 installed sql server 2008 express sp1. also installed sql server management studio. how ever am not able to connect to sql server thru the management studio. error message show below :-
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)