  A family of orthonormal polynomials on the unit ball $B^d$ of $\RR^d$ with
respect to the inner product $$
  < f,g >
  = \int_{B^d}\Delta[(1-\|x\|^2) f(x)] \Delta[(1-\|x\|) g(x)] dx, $$ where
$\Delta$ is the Laplace operator, is constructed explicitly.
