Bug 58095 [Preferences] Selecting pref page moved dialog to other screen
When I move the preferences dialog to my secondary screen and change a prefpage, the entire dialog moves back to my primary screen and "hugs" the right border of the main screen.
bundles/org.eclipse.jface/src/org/eclipse/jface/window/Window.java
return new Point(centerPoint.x - (initialSize.x / 2), 
			Math.max(monitorBounds.y, Math.min(centerPoint.y - (initialSize.y * 2 / 3),
							monitorBounds.y + monitorBounds.height - initialSize.y)));
}
/**
 * Returns the initial size to use for the shell.
 * The default implementation returns the preferred size of the shell,
 * using <code>Shell.computeSize(SWT.DEFAULT, SWT.DEFAULT, true)</code>.
 *
 * @return the initial size of the shell
 */
protected Point getInitialSize() {
	return shell.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
}
/**
 * Returns parent shell, under which this window's shell is created.
 *
 * @return the parent shell, or <code>null</code> if there is no parent shell
 */
protected Shell getParentShell() {
	return parentShell;
}
/**
 * Returns this window's return code.
 * A window's return codes are window-specific, although two standard
 * return codes are predefined: <code>OK</code> and <code>CANCEL</code>.
 *
 * @return the return code
 */
public int getReturnCode() {