I have been using my friend's Nike Speed and Distance Monitor for the past week and it's worked really well in telling me my speed and distance on my runs. But when I went on my run today the mileage counter stopped in the middle of my run and the light on the monitor attached to my laces wasn't on. It was raining pretty hard out so that might have been it. Anyone have the Nike SDM and had a similar problem? Any help would be appreciated as it's not mine and feel guilty about breaking it.