Hello All, I think I might have discovered the problem with the HRM. If I have it on and my arm is pretty stationary, it reads fine. As soon as I flick my wrist or other movement the HR freezes.. If someone is willing to download Sport Gear Tracker and see if your watch does the same thing-- would be helpful. Just start SGT on the watch, touch the square in the center, then you will see three symbols show up. On the right is the "settings" wheel, on the bottom seems to go to your records or history. The top one is a triangle - the start button. Drag the triangle down to the middle square and it starts the HRM. Watch it for a while and make sure your heart rate is changing, you might need to walk around a bit. Once you know it is working and actively registering your HR, then flick your wrist and/or move your arm around with somewhat sharp motions, and see if you HRM freezes. If it doesn't than I will assume I actually have a defective watch, and I can send it back... Thanks in advance to anyone who can help me out here... -cjr-