I am trying to fire single particles into the LCD detectors using LCDROOT. I am using the GoDiag.C as an example for generating the particles. This produces a stdhep file as output which I then read in, push through fastMC and display the event. I can see the particle it responds to the magnetic field, but there are no showers produced. Does anyone know what I am doing wrong? Is there another way of doing this. Thanks, Brandon Drummond