I got this back in january and have had no problems until recently. Has anyone had problems with this particular e-cig where the button sometimes just doesn't work? it clicks down but it doesn't vaporize a lot of hte time. It started to happen rarely but it built up to being often, and now is the case most of the time. It seems like sometimes hitting it does the trick for a puff, but then it goes back to how it was. I think I will call customer service in the morning but I wanted to know if anyone else had this problem before.