Did you try

SET TABLEVALIDATE TO 7
* or 
SET TABLEVALIDATE TO 0

?

>Hello everyone, might you help me with this?..
>
>Case: our web application is reporting this message constantly. We dont' know what is causing this. We have set up the application to handle locks, also we have tried several ways no avoid contention and innecesary locks.
>
>Any Idea?...
>
>Environment: Windows 2000 server,
> West wind 4.0
> Visual FoxPro 8.0 SP1
>
>Thank you.