Hmmm, They list EMC as officially supported on their own site. Even so, you could always obtain a cheap PC to try it out instead of their PC, even just get a different hard drive and use the existing PC. Nothing is altered in their control software that way and it can always be returned to it's original state. If they are saying that hooking up another PC to the parallel port to run the mill voids the warranty then there is no warranty since they sell machines without control PCs so how would one accomplish controlling such a machine in that case?