  We discuss the computational problems when analyzing general, non-hermitian
matrices and in particular the un-modified Wilson lattice Dirac operator. We
report on our experiences with the Implicitly Restarted Arnoldi Method. The
eigenstates of the Wilson-Dirac operator which have real eigenvalues and
correspond to zero modes in the continuum are analyzed by correlating the size
of the eigenvalues with the chirality of the eigenstates.
