We are always trying to make our kits the very best they can be and we modified the instructions to make several of the circuits work properly. We had sold a few kits with the old instructions before this and it is really important to us that these early users get the best possible experience of our products. If you bought a 101 kit on Saturday 12th March at Maker Faire, please contact us by clicking here and filling in the form. We will then arrange for you to get updated instructions and parts immediately.