  The possible existence of non-uniform phases in cold dense quark matter in
the light quark sector ($u$, $d$ and $s$) is addressed using the
Nambu-Jona--Lasinio Model extended to include flavour-mixing 't Hooft
determinant. The effect of changes in the coupling strengths of the model is
discussed. It is seen that the inclusion of the strange sector catalyses the
appearance of these non-uniform phases extending the domain for their
appearance.
