Hi, recent purchase of a CatEye Padrone-+ cycling computer. Unfortunately, and this is the second time with a CatEye computer........if you have a NightRider light mounted on your handlebars near the computer.......then you have to choose what is more important Light, or information from the computer such as how fast am I going. Basically, there is electronic interference from the light so that the computer can no longer tell you speed etc. This is a repeat episode for this combination (last Cateye lost a sender, that you can't replace, so the computer is dead in the water.....why don't they sell replacement speed sensors?). Anyway, both Nightrider and Cateye need to figure out how to play together, or shield their electronic noise from each other. Computer is otherwise simple to put on the bike and to use.