Cigars

What am I doing wrong?
I struggle to keep any moisture in my humidor, the dial's barely above 50 half the time, and the cigars are getting rock hard. I've got two humidifiers in there I'm trying to keep topped up with distilled water, but I swear they were in better condition when I only had a tupperware box.

I have no way of keeping the temperature down, which doesn't help. I could keep the humidor in the car I suppose!

Any tips?

Might be a daft question, but did you "season" / prepare your humidor before putting your cigars in?

Here's a good link on what to do, if you haven't:

http://www.cigarpleasures.com/display/humidor_setup_and_care.html