Found something :
http://support.microsoft.com/?kbid=293638

>Do you use BEGIN END TRANSACTION?
>If the table header is corrupted, foxpro discards newly records when appended using transactions.
>I don't know the link that describe the bug, but is well known (and an extra reason for me to give up using DBFs)
>
>
>>Hi! All of a sudden when I add a record to my table in the form & save it away, the record is disappearing. The save option uses tableupdate, works when editing but not for new records?
>>
>>Any ideas?