I discovered mold in a tight area of the attick in the underside. the roof is only a couple yrs old, has both soffit and tidge vents (soffits are open. Ive been sealing any leaks to the attic i can find. Ive been told to add a power ventilator and put in gable vents also. but this http://www.ronhungarter.com/ventilation_repairs.html seems to contradict this.

so 1) what do I do

2) what do I do about the existing mold