The problem that Christianity is mandated to solve is the problem of sin.C. Michael Patton expands on the topic with a great post on the problem of sin as a problem for Christianity. Here's a great sample from his post "A Brief Primer on the Problem of Evil"...
Whatever position that we take, we must be sensitive to the magnitude of this issue, especially today. We must also approach these issues with great humility, knowing that the problem of evil is a problem precisely because it causes great pain and suffering. Discouragement and disenchantment with God when evil is present must not be looked down upon with a smug attitude of theological elitism. Theological understanding mixed with some degree of agnosticism is vital. This should prepare us to face our own upcoming evils with deep roots. It should also give a foundation for tender comfort to those in pain.and he ends his post with the Most Excellent verses of Romans 8:18, 1 Peter 4:13, Hebrews 2:10, and Romans 8:28.
These musings and scripture ring so clearly in this era of daily reports of sin and evil the world over. The bombing and killing of Iraqi children playing at marbles and hopscotch, shared in the Round Table's previous post force us to meditate and pray on God's direction on this issue, or we risk becoming insensitive to the sin and evil and treating it as merely the inevitable results of a fallen world that we Christians can only resign ourselves to.
We pray, Lord Jesus, that our hearts are never so hardened that we quit seeking understanding on this most difficult of human issues.