>Cathy,
>
>Yes the report previews OK when run alone in it own form.
>
>When that same form is called from the form with the grid in it, however, the error occurs!
>
>Is there a fix?
>
>Ron

The grid interaction is not considered a bug, therefore, I wouldn't expect any "fix" from Microsoft. Do you have any timers on the form that might be interacting with this? What code are you using to programmatically get focus off the grid and onto something else just prior to running the report?