I had the same problems and was also hesitant to reformat E:/. I have a Forerunner 10. I will try the link. I had to order a new wristband, but I'm hoping the actual watch does not need repair. I am wondering if it's not the watch but the special garmin cradle and USB cable. I only say that because for a time it would have trouble recognizing the watch, but when I jiggled the cable it would register. So, just breaking down all the fault possibilities, it may be worth trying a cable that you know works with someone else's watch before mailing it in and having to find a way to run or cycle with the mobile app running (in my case) on your phone. : )
It worked! I held the backlight button (upper right) for 5 seconds (the manual says up to 15) and then the watch reset when it shutdown. I pushed it again quickly to turn the watch back on. I plugged the USB cable into the computer and then connected my watch to the cable. So, it was not the cable. I was able to upload my runs!