  We have studied the Kardar-Parisi-Zhang equation in the strong coupling
regime in the mode-coupling approximation. We solved numerically in dimension
d=1 for the correlation function at wavevector k. At large times t we found the
predicted stretched exponential decay consistent with our previous saddle point
analysis in [Phys. Rev. E {\bf 63}, 057103 (2001)], but we also observed that
the decay to zero occurred in an unexpected oscillatory way. We have compared
the results from mode-coupling for the scaling functions with the recent exact
results from Praehofer and Spohn [cond-mat/0101200] for d=1 who also find an
oscillatory decay to zero.
