  Numerical results are presented for transport properties of two coupled
double-level quantum dots. The results strongly suggest that under appropriate
circumstances the dots can develop a novel ferromagnetic (FM) correlation at
quarter-filling (one electron per dot). In the strong coupling regime (Coulomb
repulsion larger than electron hopping) and with the inter-dot tunneling larger
than the tunneling to the leads, an S=1 Kondo resonance develops in the density
of states, leading to a peak in the conductance. A qualitative 'phase diagram',
incorporating the new FM phase, is presented. It is also shown that the
conditions necessary for the FM regime are less restrictive than naively
believed, leading to its possible experimental observation in real quantum
dots.
