Hi guys, new guy on the block but I just wanted to grab some quick help. I bought this cig about a week ago and there have been some interesting issues. It seems to be a little choosy when I try to use it, and the button will often light up, not fire, and then quickly turn off. Other times it is all good. Just wanted to know what's going on and how I fix it. I have tried lifting the pin but to no avail.