Hi Art. I have had to replace my computer and I have a problem with the modality Sherline. With the old PC, on your suggestion, I have resolved a problem of loss of footsteps planning the modality Sherline. With the new PC if imposes the modality Sherline, pressing the right arrow or the left arrow, the axle X always moves him in the same direction. The new PC has a processor AMD X2 4800 + with chipset ATI and 2Gb of ram. Can you help me? Thanks in advance, Giordano.