I hate it-worked-yesterday-but-now-it-magically-doesn't-work bugs!  I haven't seen this before but had a few debugging suggestions.
How much current is your parlor+duovero setup pulling and is the PMIC getting hot? More than 600mA at 5V sounds like an electrical problem.  Otherwise, I'd actually suggest that a software issue is more likely. Are you certain the microSD card is good? What is the behaviour if you try to boot with no microSD?

On Feb 16, 2013 9:31 PM, "seesemichaelj" <seesemichaelj@gmail.com> wrote: