Just a thought... If the beads are some generic type and not working for you, consider replacing them with a Boveda pack or two. I use them in my desktop / 150 count humi and the humidity is rock solid at 67%. And you can recharge them when they dry out. I think it was Scott that posted the lazy way to do it and it works perfectly. Best four bucks per pack I've spent. Those bad boys are definitely set it and forget it for about 3-6 months between recharges!
