  We reexamine the transition magnetic moment solution to the solar neutrino
problem. We argue that the absence of large time variations in the
Super-Kamiokande rate provides strong evidence against spin-flavor flip in the
solar convective zone. Spin-flavor flip could, however, occur in the primordial
magnetic field in the radiative zone. We compute the longest lived toroidal
mode for this field and show that spin-flavor flip in the radiative zone can
account for all available solar data.
