Hi, I have been using a edge 500 for about 2 years now without trouble, and as an early Xmas present I got a FR410. I am able to DL activities from my FR410 now, and have never had a problem uploading activities from my edge 500 until today. I plugged my edge 500 into my computer as I always do, and it started powering on and off and acting weird. I think a few times I saw it say "Power lost" or something along those lines. So basically I am not able to get my Edge 500 to be detected by my computer. I found this out when I tried uploading an activity to my computer today, I did what I normally do and go to the Garmin connect site, hit upload, and it usually shows my edge 500 and asks to upload new activities, but now its showing the FR410, even though the watch is powered off, ANT+ stick is unplugged, and the Garmin ANT agent program is closed. Is there something that I need to do to select either the Edge 500 or FR410 as the device to be detected . I also looked if it was detected by my computer at all by looking in "My Computer" but the Edge 500 cannot be seen there. Can anyone help me? Thanks in advance.