A bug was found in the helical extrapolation for the calorimeter smearing in the fastMC. A new tar file has been put on the web, as well as a tar file containing just the three affected files. Check out the patch readme. 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)