That's something I saw many times (sadly) with the WeatherStar 4000, but I actually never dreamed it could happen to the IntelliStar, especially so soon.
Is it only during the "Almanac" screen, or is every screen that doesn't have a map like that?
I can imagine this is even worse, actually, than the WeatherStar 4000's background degradation, since, except for the "Almanac" and "Air Quality" screens, there was usually a blue box (or three for the "Extended Forecast" covering most of the background, so most of the time you only saw the very fringes of the degradation.