Izhikevich neuron has no stable state

Hello Jeff, I have a small qestion.

First, I make new network. Then I put Izikevich neuron to workplace and push "simulate" button. I see, that it is fireing again and again whithout any affection on it. Can i set it to some stable state? (like integrate-and-fire have it at 0.4?). I run example "SinusoidalInput" (i need to do something like that), but insted of IAF i need to use Izhikevich, but i can't. So, that is the qwestion... Can i do it and how i can? (Sorry for my bad English).

Thanks before.