Hey all. I just hit a major issue with my MK34vn. I had the light on turbo for about 30 seconds. It got pretty darn hot, which I would expect. At this point, I decided I should step down to let it cool for a moment. Well, it wouldn't step through the cycles. I thought "Oh crap, this is not good" so I tried to turn off the light. Ha, it would not turn off. I then unscrewed the head to separate it from the body. It did turn off at this point. After everything cooled off I decided to re-assemble it. Low and behold, it came right back up in turbo mode and will not shut down. Has anyone experienced this before? Do I need to get into the UI mode and change something to get it to turn off? or is this a return to builder deal?