  In this paper we consider type IIA compactifications in the isotropic Z2 x Z2
orbifold with a flux-induced perturbative superpotential combined with
non-perturbative effects. Without requiring the presence of O-planes, and
simply having D6-branes as local sources, we demonstrate the existence of de
Sitter (dS) critical points, where the non-perturbative contributions to the
cosmological constant have negligible size. We note, however, that these
solutions generically have tachyons. By means of a more systematic search, we
are able to find two examples of stable dS vacua with no need for anti-branes
or O-planes, which, however, exhibit important non-perturbative corrections.
The examples that we present turn out to remain stable even after opening up
the fourteen non-isotropic moduli.
