Hi,
Could someone explain how the position off a modal dialog is calculated?
I set the height of my modal dialog to 780px (all of the dialog page is displayed), and this modal dialog is displayed at the top of the window:

A user complains that the modal dialog is positioned approximately half way the window, and has to be dragged upwards to show all items and buttons.
After changing the height to 600px, I get the same response (the modal dialog is positioned approximately half way the window) on my environments: different types of Macbooks (Air/Pro), a Window PC, all modern browsers.

So sometimes (how SMART is that!) the modal dialog (with height set to 780px) is positioned Top, sometimes Top minus x.
Thank you,
Jos