>Changing page with the Right/Left keys,
>you don't succeed in stopping the operation into Deactivate,
>only with KeyPreview and NODEFAULT on the Form.Keypress
>it is possible to stop the change page.

I didn't know you can switch pages with Right/Left keys, I'm going to play with it. You can also switch using Alt+Hot Key combination, I'll test it.

I see the problem. It looks like the first right key is ignored, and only second works. Ouch, too many bugs to work around...