  We report on our ongoing project to calculate the leading hadronic
contribution to the anomalous magnetic moment of the muon a_mu^HLO using two
dynamical flavours of non-perturbatively O(a) improved Wilson fermions. In this
study, we changed the vacuum polarisation tensor to a combination of local and
point-split currents which significantly reduces the numerical effort.
Partially twisted boundary conditions allow us to improve the momentum
resolution of the vacuum polarisation tensor and therefore the determination of
the leading hadronic contribution to (g-2)_mu. We also extended the range of
ensembles to include a pion mass below 200 MeV which allows us to check the
non-trivial chiral behaviour of a_mu^HLO.
