I recently (last month) purchased a new Edge 130 with heart rate monitor as a bundle. It appeared the heart rate sensor had already been attached (as there was a number in the sensor list) but I was not getting any heart rate data on the Edge. So, I thought I would remove the sensor and reattach it. But when I put the heart rate strap on and try to attach it I get the error msg that "no sensor found". I have tried to reset the Edge but it makes no difference. Maybe the strap isn't working properly or battery flat ?? Anyone else had a similar problem?? How could you test if the strap is faulty?? Thanks