>I have a customer running an accounting application written in VPF 7.0.
>They are having an intermittent problem with the DBC loosing cdx
>definitions. When I look at the table the tags are still there. But, when I
>validate the DBC they are missing. This does not happen for all files just
>one or two at a time. Any one else experienced this? Any insight into what
>is going on?

I don't know what's causing this, but you might want to look into Stonefield Database Toolkit, which is designed to automatically fix this kind of problem.