Our hp800 ps printer is a postscript plotter that is very slow when printing a postscript file. On windows, print speeds increase dramatically if one prints to the HP-GL2 printer queue and not the postscript queue. Unforrtunately, Mac OS X does not have an HP-GL2 driver. The only driver is available is the postscript driver. Which means that printing from a Mac takes forever. Easiest solution is to take the file to the windows machine and print it there. I’ll have to watch for any new drivers from HP for this printer.