  In this note we present numerical simulations of binary mixtures. We study
the diffusion of particles and the response to an external driving force. We
find evidence for the validity of the Cugliandolo Kurchan off-equilibrium
fluctuation dissipation relation. The results are in agreement with the
predictions of one step replica symmetry breaking and the dependance of the
breakpoint parameter on the temperature coincide with that found in simple
generalized spin glass models.
