  Assuming gauge-mediated supersymmetry breaking, we simulate precision
measurements of fundamental parameters at a 500 GeV e+e- linear collider in the
scenario where a neutralino is the next-to-lightest supersymmetric particle.
Information on the supersymmetry breaking and the messenger sectors of the
theory is extracted from realistic fits to the measured mass spectrum of the
Minimal Supersymmetric Model particles and the next-to-lightest supersymmetric
particle lifetime.
