Ralph Alvy (ralvy@compuserve.com) has been a full-time chiropractor in Santa Monica, California since 1982. He manages his patient billing with a DataPerfect application he wrote for his desktop. Ralph is sysop of the DataPerfect section of WPUSERS (Section 11) on CompuServe. He's the author of Mastering DataPerfect, the most comprehensive text ever written on DataPerfect.