>>No,the table isn't part of a DBC and and I try to do this from FoxPro,
>>not from a program, the error occurs when I try to save the changes
>
>OK, there are three possible files involved directly in the table, and possibly a bad backlink.
>
>A .DBF in all cases
>If any Memo or General fields are in the table, a .FPT
>If any tags are defined, a .CDX
>
>I just tried to delete any one of the three components, and the USE failed, so it's not a missing file.
>
>A bad backlink also fails during the USE.
>
>What about the file attributes - is one or more of the files flagged with a read-only, hidden or system attribute?


Can you give the exact structure of the table as it exists now before it blows up - you can USE the file and then LIST STRU TO FILE filename to capture it in a text file in standard format, and then give the names, datatypes and lengths of the fields be added? This will let other people test to see if its something reproducible on another system, or if something may be wrong on the computer you're trying to do the modification from.