Thanks for the response. That is a good video, I had watched it before I built my printer and it was a lot of help. As to my problem, I sent Colin an email and he suggested separating the Arduino Mega from Ramps board and see if I could connect. I couldn't connect so it looks like USB port on the Arduino went bad. Got a new card on the way. Colin is amazing, I got responses within an hour on Saturday night and again Sunday morning. I don't think there is any product out there with that kind of support!