  We consider the possibility of observing deviations from the Standard Model
gauge-boson self-couplings at a future $500$~GeV $e^+ e^-$ linear collider. We
concentrate on the case in which the electroweak symmetry breaking sector is
strongly interacting and there are no new resonances within reach of the
collider. We find a sensitivity to the anomalous couplings that is two orders
of magnitude higher than that achievable at LEP II. We also show how a
polarized electron beam extends the reach of the collider, allowing experiments
to probe different directions in parameter space.
