http 301 error

Upgraded to nw65sp5 on the main production iPrint server this morning.

After two abends I applied iprintnw65sp5d to stop an abend in
ippsrvr.nlm (looking ok so far).

Now I have found that secure printing is not working, trying to install
an existing secure printer, and also trying to install a newly created
secure printer produces a http 301 - moved permanently error.

I believe users already configured for existing printers are seeing
this message(?)

Anyone give me any pointers?

Thanks
IanB