Maybe I wasn't very clear. When I display the CPU screen, I see what appears to be a single update, then the apparent reset.
I'll plug in some resistors to see how it goes. Currently, both Freeduino's are powered from the same 12v source (bench power) with a split pigtail for the power jacks, so a common ground. Since the Guino code is vastly larger, I'm speculating that it comes online after the test generator, but, you're right, that's no guarantee. My two Freeduinos are not easy to mix up as the Guino one has the proto-shield with the LCD and the generator is just a plain board. Yes, I suppose I could have uploaded the incorrect program, but I think I'm better than that
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I think I'll update the generator to put a signature pin 13 blink sequence or something to it will be obvious when it's functioning.