Automated Reimage?

I'm trying to reimage my 220 with the v8.3 hardware iso but every time I boot up the 220 with the USB disc drive I get to a screen asking me to hit "enter" to continue installation. I've tried plugging in a usb keyboard with no luck.

So my question is, aren't the hardware isos suppose to automatically install upon being booted from and how can I hit "enter" if I can't get a keyboard to be recognized by the 220?

Thanks.