{NOCREATE}RWFactory error

We have several HP8000N printers operating from an NT server that is also our PDC. When trying to acces the printer (or in some cases applications ) we get a “[NOCREATE}RWFactory; no create function for class with ID 1012 (0x3f4) fatal error message. I have reinstalled the printer and print drivers, and installed an HP TCPIP port and installed the printer to that port. Problem was solved for 2 days but it reappears. HELP!!! My email is porterdan@aol.com