How to overcome resolve this exception in RRDI ?

Installing RRDI (I've done successfully several times) and after running the RRDI setup I connect to the report server and launch Cognos Configuration.   Since our warehouse are on AIX 6.1 (64bit) I have cataloged the actual database through TCP/IP to a local alias.   In Cognos Config I go to the Configuration / Data Source Connections and open the RIDW, go onto the connection and change the connection to use the local database alias.  Then I test the connection. Instead of the "Success" I get "Failed" and this:

Handler trace back:
[the_dispatcher] com.cognos.pogo.handlers.performance.PerformanceIndicationHandler
[the_dispatcher] com.cognos.pogo.handlers.logic.ChainHandler
[service_lookup] com.cognos.pogo.handlers.engine.ServiceLookupHandler
[load_balancer] com.cognos.pogo.handlers.logic.ChainHandler
[lb_forwarder] com.cognos.p2plb.clerver.LoadBalanceHandler
[mdaChainHandler] com.cognos.pogo.handlers.logic.ChainHandler
[asyncMetadataServiceHandler] com.cognos.pogo.async.impl.AsyncHandler
[metadataServiceHandler] com.cognos.metadataService.bibusHandler.MDSRVHandler
Exception trace back:
Can't find resource for bundle java.util.PropertyResourceBundle, key MDSRVRequestInvoker.noResponse
java.util.MissingResourceException: Can't find resource for bundle java.util.PropertyResourceBundle, key MDSRVRequestInvoker.noResponse
    at java.util.ResourceBundle.getObject(ResourceBundle.java:421)
    at java.util.ResourceBundle.getString(ResourceBundle.java:435)
....

From the description, it seems that somewhere there is a properties file missing -- but from where ? 

I have re-installed RRDI 3x today to try to resolve this ( into a new empty folder, thanks for asking ... )

Thanks.