I'm a newb at this. I finally got the computer to recognize my SmartBob-424 card. It seems I've fixed the invalid or unknown device error. I have the STMelectronics port showing in Device Manager with no exclamation points. I tried to get the machine to do something today. My computer is a Win 7, 8 GB ram, 64 bit system. I tried putting in some code in MDI. A simple program, just G1Y1. The movement was made in Mach4 on my screen but no movement on the machine. When I started Mach4 I got a message in the History window that said Lua:Error occurred while opening file. I went into Diagnostics for the 424 card. When I make a move in Mach 4 the output lights turn green and yellow for the axis that I'm moving but nothing moves. At the bottom of the Diagnostics window under encoder position it says **Disabled** in the first window and Rawln 0x000007ff in the other window. Also I have a new light on the 424 board. I think its an "enable light". Its near a barrel shape capacitor, lower center of the board. I haven't done anything with the emergency stop switch. Could that be holding things up? My board still has the red connector on the E stop that came with the board. I would like to get this working. I feel like its close but no cookies yet. Thanks in advance for any help you could offer me. Not sure what other info to supply. Mach4 build #4162, screen set name wx4, set, PMDX SmartBob-USB Device: PMDX-424(RevD PCB)on COM3, Serial #: SN38024(D1), plugin version: 0.53.263, bootloader version: 1.15.76, firmware version: 0.60.208