Thanks all for the info and advice. I contacted MacroEnter and they have called me, but it turned into phone tag as I missed the call. We're moving to a new building so maybe I should pick up a new machine and have the old plotter turned into a boat anchor or dumpster bait. I'll let you know what I find out for those interested. Thanks again.
I have inherited an old HP plotter (HP 7596A DraftMaster II) is it possible to use it with MacOS 10.3.8 and VectorWorks 11.5? I've searched the archives and find no reference to this old plotter and MacPlot doesn't seem to be an answer either. Thanks, David