forum.cncdrive.com

I just plugged in my new UC300ETH LPT5 and UCBB today. I can talk to the UC300ETH with the uccnc software. The blue 5v light on the UCBB is on, the green 24v light is also on. But, there is no voltage between the 5v pins 3 & 4. I was hoping someone could kick me in the right direction.
Thanks for any help.