Isn't there an outfit called RADWARE that developed CHP prep software? They used to advertise in the Journal (haven't seen them there for a while). Regards, -Erick Erick Lindstrom Radiation Safety Officer 309 Montana Hall Montana State University Bozeman, MT 59717-0244 Phone: (406) 994-2108 Fax: (406) 994-4792 avrel@gemini.oscs.montana.edu