Just got a Zico.  Gave it a couple test lights and it seemed to work great.  Then I popped off the twist cap on the bottom to see how I would refill it when the need eventually arises.  Seemed to be pretty straightforward.  I put the twist cap back on, but now every time I try to light it there's no flame, only spewing butane.

This is actually my first butane lighter so I'm probably doing something wrong.  Anyone have any suggestions for this n00b?  Thanks in advance.