I am having a weird problem with my CNC mill. It is a Syil clone with a DMM breakout board, DNY2 servo drives and a UC100 parallel port adaptor with Mach3 software. The issue is that more often than not, when I start the machine and try to jog the table the servos won't move. The axis display in Mach3 indicates that the table is moving, but nothing. In order to get the servos to move I have to connect directly to the servo drives with my RS-232 cable and reset the drive parameters. Not sure what could be causing this problem.