CM display the localhost as "valid" although there is no CM server installed in the localhost

I only installed the CM client without installing cubrid server and cm server.
However it dsplays the localhost as it is and when I attempt to connect to the localhost, it asks me to enter my CM server log-in information. The error message pops up with "Connection refused: connect".

I think in this case the message should return "Cannot find the CM server. Please check if you have intalled CUBRID server" Otherwise, the localhost icon on the left tree should be disabled.

This matters since we have separated each of CM client and CUBRID server package.