  We present a very simplified analysis of how one can overcome the Gribov
problem in a non-abelian gauge theory. Our formulae, albeit quite simplified,
show that possible breakdowns of the Slavnov-Taylor identity could in principle
come from singularities in space of gauge orbits. To test these ideas we
exhibit the calculation of a very simple correlation function of 2-dimensional
topological gravity and we show how in this model the singularities of the
moduli space induce a breakdown of the Slavnov-Taylor identity. We comment on
the technical relevance of the possibility of including the singularities into
a finite number of cells of the moduli space.
