  We claim that any approach neglecting the spin-orbit coupling and the orbital
magnetism is not physically adequate for 3d oxides, including NiO, and that in
reaching "excellent agreement" in a Phys. Rev. Lett. 93, 126406 (2004) paper
too small experimental value of 1.9 muB has been taken for the Ni magnetic
moment despite publication of a new experimental value of 2.2 muB, at 300 K
yielding 2.6 muB at T = 0 K, already in a year of 1998.
