(c)Hal Berghel1997 - all rights reserved. All requests for reproduction and/or distribution of this electronic document should be submitted via Email to the author ( hlb -at- berghel dot net ).

This is a draft version (preprint) of material which was later edited and published in my Cybernautica column in PC AI magazine. The published version is a copyrighted feature of PC AI magazine and Knowledge Technology, Inc. All requests for reproduction and/or distribution of the published version should be directed to Knowledge Technology, Inc.