  Using a recently proposed group-theoretical approach, we explore novel
gaugings of maximal supergravity in four dimensions with gauge group embeddings
that can be generated by fluxes of IIB string theory. The corresponding
potentials are positive without stationary points. Some allow domain wall
solutions which can be elevated to ten dimensions. Appropriate truncations
describe type-IIB flux compactifications on T^6 orientifolds leading to
non-maximal, four-dimensional, supergravities.
