Quote
fizzman
I will then buy a new board.
How about fixing the signal trace? If you have a signal right in the ATmega pin but not on the MOSFET it shouldn't be too complicated to solder in a piece of wire to bridge the broken track.
If there's no signal in the ATmega directly, too, it's either a firmware issue or you need a new ATmega. On a Sanguinololu, the ATmega is replaceable.