I've run off some events with a correct Cu.mat file and the events look much more sensible in the Small detector (still poor resolution, but that's part of the study!). See http://www-sldnt.slac.stanford.edu/nld/zips.htm for a link to the revised file. Richard -- Richard Dubois SLD, Stanford Linear Accelerator Center [log in to unmask] http://www.slac.stanford.edu/~richard/ 650-926-3824 650-926-2923 (FAX)