Same Problem, same question. After a swimmsession I stopped my session by hitting the left button twice. After that, the watch has since frozen. It simply displays the time and date. None of the buttons work. I have been using this watch just fine for over a year with no problems. I tried all the reset instructions and none of that has worked (putting it in the dock and holding the 'down' button before plugging it in to the computer, etc). When I put it in the dock and connect it to a power supply or the computer, nothing happens. Should I just wait for the battery to completely die and then try recharging it? Any advise is appreciated.