I think I made a mistake by getting a Dongda TS-3040C-H80 cnc machine off ebay. I can not find a device driver for it anywhere. Not even from the seller(everything is in Chinese). Can anyone tell me where to find one. It shows up as "unknown Device" on my computer and no matter what I do I can not get it to connect with the computer. I get error; no device driver found. I am using BobCAD-CAM program, HELP!