  We investigate propagators in Lorentz (or Landau) gauge by Monte Carlo
simulations. In order to be able to compare with perturbative calculations we
use large $\beta$ values. There the breaking of the Z(2) symmetry turns out to
be important for all of the four lattice directions. Therefore we make sure
that the analysis is performed in the correct state. We discus implications of
the gauge fixing mechanism and point out the form of the weak-coupling behavior
to be expected in the presence of zero-momentum modes. Our numerical result is
that the gluon propagator in the weak-coupling limit is strongly affected by
zero-momentum modes. This is corroborated in detail by our quantitative
comparison with analytical calculations.
