I'm noticing that the window will shift down when I click on the window title (e.g. when I want to move the window). It only happens if I have scrolled my main page up. As a matter of fact, the window will shift down exactly the same distance that I've scrolled my main page. The shifting will occur repeatedly as well. Each time I click on the window title, it shifts down until it's completely disappeared. At that point I'm stuck because I can't close the window. Looks like the calculation that is computing the top coordinate of the window isn't correctly accommodating the scroll position of the main page.