Hi, the Stepfour factory has been gone a few years to my knowledge, I own a Stepfour cnc hot wire cutter running on DOS, check the software is not running in simulation mode, an icon in the bottom right hand side of the screen, should flash green when in simulation mode, the cut will show as though its milling or cutting but the the machine will not move, the software version I have is Professional V3, I have heard of another software to run these small machines is Mach 3, thats all i know about it though never used it only seen it on youtube, hope that helps.