We have a CG-160FX11 running on a Mac computer. We bought this plotter used with some other equipment and there was no software disk. An employee had a smaller Mimaki plotter of his own and he "loaned" us his disk so we could run the machine. He says there is no way to get this software and if he were to leave and remove his software from that machine (something he has said he would do), we would be out of luck and would have to buy a new plotter. From what I see, the software is out there and available for download. I'm fine buying it - not looking for a freebie. What are my options?