I have asked many people around me, even taken an adobe illustrator class to try and learn to open this postscript file... but no one I've asked can open this file. We generate and view this in (linux based) software written specific to a request many years ago, it is printed to a plotter printer (18"x30")...so I know the image is there. But now we want to open in a commercially available software (adobe illustrator for example). Every way I try to open it, I get a blank white sheet or a grey/white checkerboard. Please help.