  In this talk, based on the work \cite{cpviolation}, we refine our previous
analysis \cite{golden} of the sensitivity to leptonic CP violation and
$\tetaot$ at a neutrino factory in the LMA-MSW scenario, by exploring the full
range of these two parameters. We have discovered that there exist, at fixed
neutrino energy, $E_\nu$, and baseline, $L$, degenerate solutions. Although the
spectral analysis helps in disentangling fake from true solutions, a leftover
product of this degeneracy remains for a realistic detector, which we analyse.
Furthermore, we take into account the expected uncertainties on the solar and
atmospheric oscillation parameters and in the average Earth matter density
along the neutrino path. An intermediate baseline of O(3000) km is still the
best option to tackle CP violation, although a combination of two baselines
turns out to be very important in resolving degeneracies. This summary is based
on a talk given at NUFACT01, May 2001, Tsukuba (Japan).
