I have not read this entirely, however, a cursory look tells me others on this list may find it interesting. http://heather.cs.ucdavis.edu/itaa.real.html -- ____ __ | 0|___||. Andrew Gaunt - Computing Development Environment _| _| : : } Lucent Technologies: http://www-cde.mv.lucent.com/~quantum -(O)-==-o\ Personal: http://www.gaunt.org