I have a Vision ViVi Nova and I have a few problems with it... first is that when I screw on the top metal piece that holds the drip tip, the atomizer portion with the wick always goes out of place so I have to screw it on and pry it to the left a little with a paper clip-it's not too big of a problem though. The major problem is that just the other day, I have noticed a burning taste/lack of flavor/but plenty of vapor coming from my vivi. I cannot seem to find the thread that solves it but I know it exists. If anyone has had this problem, please help a brother out. Also, with my Kanger ProTank, I get LOTS of dripping and was wondering if anyone knew how to fix that too...thanks guys! 