>Hi Claude.
>
>Yes there is a grid. What is strange is that it works in single site version. Form b has no data environment of its own, it inherits that of form a.
>
>Well, the first place that I would look would be the controlSources of the columns in the grid. One of them is probably mis-spelled. To see if this is the case, back up the form and remove all the controlSources from the columns and see the the C5 stops...

I was not able to get to this for a few days, I will check it as soon as I can.

Thanks for the information, it would have beennice if VFP produced an error rather than aborting.