When I navigate to "edit"|"preferences", the dialog boxes are more than 600 pixels tall, with no scroll bars.  The dialog box extends below the visible portion of the screen (my 1024x600 netbook desktop area).  There does not appear to be a way to see the lower options or to scroll the window upward.  I suggest that the window size for these dialog boxes should be max'd to the desktop limits, and scroll-bars provided to allow full access to the inner panel.