Ok heres the deal. I have a permanent 5V feed going into the postive side of the PicAxe, and a switch on the negative (im using NPN transistors to power LED's). However I also have a switch for input to pin 3 which is also a negative feed. When I flick this switch to pin 3 the Picaxe turns on although there is no ground going to the ground pin. Is this normal PicAxe behaviour and is there something I can enter in the code to stop the Picaxe powering of Pin 3? Cheers.