  The first-principles SIC-LSD theory is utilized to study electronic, magnetic
and orbital phenomena in LaMnO$_{3}$. The correct ground state is found, which
is antiferro orbitally ordered with the spin magnetic moments
antiferromagnetically aligned. Jahn-Teller energies are found to be the largest
energy scale. In addition it is the Jahn-Teller interaction which is the
dominant effect in realising orbital order, and the electronic effects alone do
not suffice.
