Why did Robert Folkenberg quit as president of the General Conference of the Seventh-day Adventist Church in 1999?

He was forced out for conduct unbecoming a church officer. He received preferential treatment for selling his house in Georgia and he was involved in a scheme to get Adventists to switch to MCI long distance so he could get a commission. Another answer: Pastor Folkenberg was involved in a situation where it was unclear whether or not he had inappropriately used his position as GC president in order to influence people in a way that financially benefited him. Pastor Folkenberg chose to resign as GC president rather than allow the church to be dragged further into a scandal and/or into a lawsuit.