I talked to the client and understand the hesitation about replacing the Win98 PCs. The problem is that this is as likely to be a printer driver/Win98 issue as an Adagio/Win98 issue, and no-one will be very keen spending R&D time trying to track down a problem in a 6 year old platform that is not re-creatable on Win XP.

I'll see if a general discussion here can suggest some alternatives.