When in Mach3 and the reset button is activated, the motors will move slightly when opening a new file or closing an existing file causing the table to go slightly out of square. When pressing the reset button it will also move the motors. All three motors seem to move. It is slight though the table needs to be homed each time to keep it in square. Could this be noise? Table is grounded to the control panel. Can a local ground rod make a difference? Thank you for your help.