So I've had the joker since it came out, nd about 15 minutes ago, it started having a cutoff. After taking a drag for about 3 seconds, the LED changes to blue for a SPLIT second, (almost unnoticeable) then turns off, and stops producing vapor. It works again if I press the button immediately after, but still cuts off about 3 seconds later. I tried putting in freshly charged batts right off the charger, and have the same problem. I also tried swapping the atty with the same results. I'm hesitant to send it back yet, atleast until I get another 5 volt device, since this is currently the only thing I leave my house with, I absolutely love it, and my 510 PCC doesn't charge the batteries anymore. Any1 else have this problem? Any suggestions?