Schwill -- just caught another post of yours elsewhere about running mics > MP-2 > M1. Definitely stick with an M1/D100 b/c the ADC is much better than the D8 ADC, IMO. Just not sure this particular unit is the one you want given it's troubles.
You could always go for it, send it in to Paul at ProDig, and if it isn't worth fixing, sell it for what you paid for it.