Modal dialog form not in the center of parent when application tiled
<p>I have a small app that requests user input ever couple of minutes. The app produces a modal pop up and waits for the user input but when the app is tiled with other programs the dialog appears randomly in different locations on the screen.</p>

<p>I've set the position in the constructor to CenterParent, and it doesn't work. Am I missing something here?</p>
