Supersymmetric flat directions and resonant gravitino production
  We study resonant gravitino production in the early Universe in the presence
of SUSY flat directions whose large VEVs break some but not all gauge
symmetries. We find that for a large region of parameter space the gravitino
abundance is several orders of magnitude larger than the cosmological upper
bound. Since flat directions with large VEVs are generically expected in
supersymmetric theories this result further exacerbates the gravitino problem.
