>When I open a VFP Report (in preview mode) and move from
>a page to another with previous and next buttons, after
>some moving all the buttons (except the close button) become
>disabled. Then I have to close the report to get out of that
>situation. Someone knows if it's a bug ?

Please tell us precisely which version of VFP you are using, including Service Pack.

Have you looked on the MSDN knowledge base?