  In this paper we address the question of proving Anderson localization (AL)
for the operator [H(x,\omega)\psi](n) := - \vp(n+1) - \vp(n-1) +
V\bigl(T^n_\omega x\bigr)\psi(n), n\in\mathbb Z where T:\tor^2\to\tor^2 is
either the shift or the skew-shift and V is only C^\alpha(\tor^2) for some
\alpha>0. We show that under the assumption of positive Lyapunov exponents,
(AL) takes place for a.e. frequency, phase, and energy.
