>Thanks very much for your reply. I gather then that it would be unwise to, say, copy a good dbc record of another table (thereby getting valid but perhaps incorrect binary info) and change the location-tablename and referential integrity info (which I can read) to that of my problematic table.
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>I'll probably embarrass you by saying so, but I still remember a lecture you gave at one of the VFP conferences (10+ years ago-I think it may have been Minneapolis) on tableupdate() that really helped me understand what was going on.
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>Thanks for your help here.

Why would that embarrass Doug? That is what lecturers seek to do. I have attended several of Doug's presentations and invariably gained understanding, even on topics I thought I understood well. And you would have to travel long and hard to meet a nicer guy.

Doug, if you are reading this, I was poking through a couple stacks of completed books and came across "61 Hours" by Lee Child. I said I was going to send it to you and got sidetracked. If you haven't read it yet just say the word and I will put it in the mail to you.