Problems with CC BEC

I just bought the CC BEC for a MM that that replaced the stock ESC in a VXL Rustler, my plan is to go to a 4 cell lipo,I was able to program the MM ESC but when I hooked up the BEC I got a green light on the castle link program for the USB connection but a red light for the BEC connection, the green led lights up on the BEC. I called CC and they will send me a new one but I hate doing double work and I was ready to run the Rustler. Its been a real PITA