Hi, yesterday I'm trying the electronics. All work successful. All axis work fine. But today not. If I start the computer the let witch indicate the power on is turn on. That's mean the board drain power from lpt and not from external power supply 5volts witch is still off. The led is light little bit lower as with the eternal power on. And the big problem is that, the motors don't move.. I don't know where is the problem.. Broken lpt port, or breakout board.. Please help. Brandon