  Non-commutative supersymmetric Yang-Mills with rational Theta is dual to an
ordinary supersymmetric Yang-Mills with a 't Hooft flux. It is believed that
the simplest description is via the ordinary supersymmetric Yang-Mills. We
claim, however, that the two descriptions form a hierarchy. The SYM description
is the proper description in the ultra violet while the non-commutative
description takes over in the infra red.
