We discuss the stability of multiquark systems containing heavy flavours. We
show that the Goldstone boson exchange (GBE) model gives results at variance
with the one-gluon-exchange (OGE) model, i.e. when the GBE model stabilizes a
system the OGE model destabilizes it and vice-versa.Comment: 7 pages, RevTeX, Talk given at Joint ECT*/TJNAF workshop on N*
physics and non-perturbative QCD, May 18-29, 1998, ECT*, Trento, Italy, to be
published in Few-Body Systems Supp
