Il servizio è attivo ma continua ad uscirmi questo errore:
Warning: pg_connect() [function.pg-connect]: Unable to connect to PostgreSQL server: could not connect to server: Can't assign requested address (0x00002741/10049) Is the server running on host "???" and accepting TCP/IP connections on port localhost? in C:\Apache\Apache2\htdocs\arc-db\inc\connessione.php on line 7

alla riga 7 c'è:
$connessione = pg_connect($dbname,$db_host,$db_user,$db_pass) or die('Impossibile collegarsi al server.');