>Thanks for your help Cetin. Indeed the error described has disappeared using your remedy but is now replaced by new ones - the database won't accept data - it is read only, and the index is stuck on the first record. A bit discouraging.
>
>k

You need to use readwrite data sources. It is not possible to correct errors in your application one by one this way. Check hentzenwerke.com for a VFP book.
Cetin