Whe I create a printer object with NWADMIN, one appears to be created, but
doesn't show up outside the NDPSM console. When I check the PA list after
creation, I get this:

An error occurred while accessing the Printer Agent list. Make sure the
NDPS manager is running. (...) Message number 490.

Bringing NDPSM down and back up doesn't do anything - I haven't found any
documentation identifying this so does anybody know what might cause this?