  Solutions for the three-gluon and quark-gluon vertices from Dyson-Schwinger
equations and the three-particle irreducible formalism are discussed. Dynamical
quarks (``unquenching'') change the three-gluon vertex via the quark-triangle
diagrams which themselves include fully dressed quark-gluon vertex functions.
On the other hand, the quark-swordfish diagram is, at least with the model used
for the two-quark-two-gluon vertex employed here, of minor importance. For the
leading tensor structure of the three-gluon vertex the "unquenching" effect can
be summarized for the nonperturbative part as a shift of the related dressing
function towards the infrared.
