>Hi patrick,
>
>I never was able to determine the exact cause of the problem. In my case it 'seemed'to have something to do with doing a TABLEUPDATE() on a row buffered table twice within one transaction. I eliminated the second TABLEUPDATE() and the problem seemed to have disappeared.
>
>I would not be surprised if it has something to do with RI code attached to the table. Are you using triggers (for RI or other purpose)? If so, are you using TAXRI or the default VFP RI builder?
>
>Thanks,
>
>Walter,

I'm having the same problem. I know, what I have a trigger failure. This RI_Handler has a bug: it does not allow to insert nulls if we have restrictions. Does your TaxRI allow NULLs?