[JXTA discuss] How to start the tutorial client server examples on a single machine?

Sorry if you receive multiple copies - 

I have trying the example included in the jxta programmer tutorial - 
"PipeService". I keep getting the error "java.net.BindException: Address 
already in use
" when I run the client and server on the same machine. I have tried to 
run the client and server from different directories (as recommended in 
the tutorial), but I still get the same error as follows:
"<FATAL 2005-08-18 15:12:29,527 
IncomingUnicastServer::openServerSocket:368> Cannot bind ServerSocket on 
/0.0.0.0:9701"

It seems both client and server are trying to bind to port 9701 for the 
default peer group initialization. How do I get around this problem?

Thanks for your help.
Bikash