Setting scrollbars to show top of form by default

[amcg]

I'm designing a form containing a number of subforms, some of which contain further subforms themselves.

When the user updates data on a linked form, the related subform on the main form shows the bottom of the subform (i.e. the scrollbar is at the bottom of the screen), thus obscuring the top of the form which contains the more important information.

I would like to set the vertical scrollbar to automatically go to the top of the form (and indeed, I wouldn't mind knowing how to do it with the horizontal scrollbar either), as it would improve the form greatly.

Thanks.