I have a really old signmaking setup which has served me in good stead for years. I’m using a Flexisign 5.5 software (not Pro) together with a Roland 1100 cutter/plotter. I’ve mastered the software, but recently the Roland cutter gave up the ghost. In the meantime, I’m planning to buy a US Cutter MH 721 to finish my backlog jobs. What I’d like to know if my old software running on my antiquated Windows 3 OS will be able to run the MH 721. I’m entirely satisfied with my present setup except that I need to replace my vinyl cutter. Any response will be much appreciated.