The reason Muhammad is not supposed to be drawn/carved/painted etc is to avoid the temptation of worshiping an idol rather than the god itself. The fundamental

The reason Muhammad is not supposed to be drawn/carved/painted etc is to avoid the temptation of worshiping an idol rather than the god itself. The fundamentalists have taken the concept to the extreme and believe he should never be drawn. It's generally accepted among the moderates I know that no one needs to worry about being fooled into watching South Park's drawing of Muhammad and fall to idolatry.