An improved solar model is shown to yield a calculated capture rate for the 27CI neutrino experiment that is a factor of 6 larger than the observed rate reported by Davis, Rogers, and Radeha. The 5B branch must occur a factor of 10 less often than expected on the basis of standard solar models. The effects on the calculated capture rates of a variety of composition uncertainties are considered. The effects of a strong primordial magnetic field are also investigated. The results obtained by several investigators who used different stellar-evolution programs are compared, and it is concluded that the different programs give consistent, but observationally incorrect, results.