Configuring Network Printers

Running a Win2000 Server with 5 nodes( all running win98 SE). On all but one
of the nodes I can install and configure printers with a psuedo LPT port(LPT2
or LPT3), even through this port do not exist. These are network printers
and I can prepend the LPT3 to the beginning of the network address, such as:
LPT3: (//hq1/oki321). This allows the accounting software that we use to
print to the printers. I cannot do this on one of the PC's, error message
port does not exist.

If anyone has any ideas about how to perform this on the remaining computer,
I would be most greatful.

Thanks