Tetrix Motor Encoders
 

How are tetrix motor encoders supposed to be configured in the Robot C file?
We have a robot with 2 motor controllers plugged into the NXT brick ports one and two. The motor controller plugged into port one has motors plugged into ports 1 and 2 with two encoders. The other motor controller is plugged into port 2 with one motor connected to motor 1 with no encoders. No motors will run with the program I'm using.