New to running, got a forrunner 220. I turn it on and the watch says it has a good signal (my treadmill is right near a window so I know there should not be a problem with a satalite signal). I cranked out 17 minutes, which i think should be a solid 1 1/3 miles or so, but the watch doesn't show I have run anything. Any suggestions? The watch timer is working good though. Thanks.