Connecting to Port 631

[Bob Underwood <mgkrebs1@cox.net>]

I installed cups and kprint on a different machine and can't connect to 
localhost:631.  The error message says: "Could not connect to host localhost 
(port 631)"

/etc/services has these lines:

ipp	631/tcp			#Internet Printing Protocol
ipp	631/udp			#Internet Printing Protocol

/etc/hosts has 127.0.0.1 localhost

root is specifically listed in group lpadmin in /etc/groups.

This box has kernel 2.4.17.  The printer will use ipp to print to a 
netprinter on a different box.

I'm sure I'm missing something simple, but have no clue.  Any help?

TIA

Bob