Page flipping scrolling up top first click

Hey everybody,

I´m using ExternalRessource to enable the URL-opening of "Modules", tiny parts of my Program.

The problem I now have is that when I open a Module the first click fires any focus (so I think) to a component and let´s the page flip up to the top and after that first click it only happens on reload (via ExternalRessource).

EDIT: The Problem only happens, when I click on a Table, ComboBox, CheckBox

Can anybody tell me what I can do here? I already tried focusing some Fields on pageload, but the same happened...

Maybe someone has had the same problem.

Thank you,
Gregor Kleiber