Have you looked at the Activity Monitor screen within the Managment Studio? I feel this is somewhat surprise features included from February CTP (or was it there before?). This is more useful to the DBAs to have a look at resource activity and locking/blocking. There is no doubt that Ken Henderson's...
Until recently I have just used Dedicated Administrator Console (DAC) to connect just to test whether the connection will be successful. You may be aware that only administrator will be able to access a running instance of SQL Server Database Engine to troubleshoot problems on the server—even when the...