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
display.sleep();
		} catch (Throwable e) {
			exceptionHandler.handleException(e);
		}
	}
	display.update();
}
/**
 * Sets whether the <code>open</code> method should block
 * until the window closes.
 *
 * @param shouldBlock <code>true</code> if the
 *   <code>open</code> method should not return 
 *   until the window closes, and <code>false</code> if the
 *   <code>open</code> method should return immediately
 */
public void setBlockOnOpen(boolean shouldBlock) {
	block = shouldBlock;
}
/**
 * Sets the default image. This is the image that will
 * be used for windows that have no shell image at the time they
 * are opened. There is no default image unless one is
 * installed via this method.
 *
 * @param image the default image, or <code>null</code> if none
 */
public static void setDefaultImage(Image image) {
	defaultImages = image == null ? null : new Image[]{image};
}