Can't connect to cups admin on :631

[Harry Putnam]

What might cause me not to be able to connect to http://localhost:631
(cups) 

I deleted all httpd logs, restarted with `service httpd restart' Then
started mozilla and tried http://locahost:631.  I get the
administation page but any attempt to click on the links gets a dialog
box with:

`The connection was refused when attempting to contact http://localhost:631' 

Well actually the link for downloading new software works ok but no
others.

Nothing appears in error_log eventhough I've set the debug flag in
/etc/httpd/conf/httpd.conf 

It appears to be something unrelated to httpd that's causing the problem.