Would like to check if anyone is using Equitrac printing in a Netware Environment with Win2K and XP clients?

Problem is with XP running NWClient 4.91 SP3. Can't print once Equitrac client is installed.

With Win2K running 4.91 SP3, no problem.

Are there patches specific to the Print Spooler for the NWClient 4.91? We are starting to look at the Netware spooler since vendor have no issue with Native Windows printing on XP and Equitrac.