Quoted from Whysnow:IME, node boards fail commonly with early code and more often post a code update.
I have found it frustrating to not know how to diagnose or work on these, so excited about the news that Stern is going to be hosting some sort of training for OPs.
I've never heard of this. I was thinking on selling my GB while it's still perfect, but maybe i'll hold out for the class and see what I think after that.