  The problem of color superconductivity in dense QCD is reconsidered in the
improved rainbow approximation to the Schwinger-Dyson equation. The effect of
the unscreened magnetic modes of gluons on the value of the color condensate is
studied. In particular, it is shown that, at sufficiently large values of the
chemical potential, these modes lead to the enhancement of the superconducting
order parameter. The interplay between the instanton induced interaction and
the one-gluon induced one in color superconductivity is discussed.
