one of my office prg need to change table data by manual monthly ( to add a set of new data into it), but after i modify the database and re-index it once, and replace the old one, the prg can't find the tag of index expression inside the cdx index file, and i use VSvfp 6.0 to open the table, i can't view the index file info. and i need manual open the cdx index file. is that the problem that i modify the table and the cdx index file will no longer be related to this table ?!