To build "Circuit board 2" you need "Diodes" for them you need "Cremet" for that you need "Crude Cermet" for that you need "Molybdenum ore" and that is made in a "Ground Borer" and that comes with the technologie "Excavation 2" that you can only invent with "Science pack 3" and for that you need "Circuit board 2".
So i am stuck. Or am i just blind?

it was a bug we fixed in recent version. Keep an eye on the forums.

Still can't build [Molybdenum Mine] with out [battery's] for [Laser turrent] which require [Fiber/Rayon] in return can only be made in [Centrifuge] and that requires [100 Circuit board 2]. I am not useing [bob's mods] or [angel mods]. Am I missing something? o_o