  We study superpotential perturbations of q deformed N=4 Yang-Mills for q a
root of unity. This is a special case whose geometry is associated to an
orbifold with three lines of codimension two singularities meeting at the
origin. We perform field theory perturbations that leave only co-dimension
three singularities of conifold type in the geometry. We show that there are
two "fractional brane" solutions of the F-term equations for each singularity
in the deformed geometry, and that the number of complex deformations of that
geometry also matches the number of singularities. This proves that for this
case there are no local or non-local obstructions to deformation. We also show
that the associated Dijkgraaf-Vafa matrix model has a solvable sector, and that
the loop equations in this sector encode the full deformed geometry of the
theory.
