I have been using Mach3 version 062 with a smoothstepper on a lathe for a number of years. In the middle of running a program all motion stopped and an error popped up on the screen saying the smoothstepper had run out of data. When I tried to zero the axis' there was a major loss of steps and calibration was out to lunch. All of the configuration numbers still seem to be correct. So far, I have re-installed Mach, updated the smoothstepper plug-in, replaced the network cable, verified that there is power to all boards, and fixed up some wiring from when I was running it from a parallel port until the computer died and it was replaced. The 64 bit operating system is Windows 7. Anyone have an idea where to check next?