When using the simple Relay Sample code - none of the LEDs on the digital side car will light regardless of choices. We have tried 2 cRIOs - 3 side cars - 2 cables - in all combinations - all yielding the same results. The PWMs work properly on the digital side car. The Digital I/O work properly on the side car. We have power to the side car. Not sure what other items to check/diagnose.