I noticed a few days ago that my screen was going blank (with full charge) as if I had it on Stealth mode. It certainly was not on any other mode but Wattage mode. I clicked 5 times to turn off and on and the screen came back. But as soon as I pressed fire it went blank again. It still however did fire even though the screen was off. A few mins of vaping later it auto fired while sitting on my desk. I luckily saw all the vapor bc my music was blasting and i was on the other side of the room. I quickly unscrewed the scorching hot atty and removed the batteries. It definitely fired for longer than the 10 second cutoff. I checked the batteries in the charger and they where fine. Next day, auto fire again. I rolled back to an earlier version of firmware and still same thing. Anyone out there run into this problem before?