  Here I review the temperature-dependence of heavy quarkonia correlators in
potential models with three different screened potentials, and compare these to
the results from lattice QCD. None of the potentials investigated yield results
consistent with the lattice data, indicating that screening is likely not the
mechanism for heavy quarkonia suppression. I also discuss a simple toy model,
not based on temperature-dependent screening, that can reproduce the lattice
results.
