I posted this in the OSX forum about a week ago. Got no response so I thought I'd try here: Hello, I have finally gotten my parallel port plotter to work with OS X through the use of Gutenprint drivers but have a little issue. Some of the files I need to print are fairly large and it seems like the plotter runs out of memory. When I was using it through my Windows machine there was an option to use the computer's memory rather than the printer's. I can't seem to find such an option on the Mac. Is it possible? Can anyone point me in the right direction? The plotter is an HP 450c if that makes a difference. Thanks for any help.