Wallpaper size problem with newest release

Since updating to the latest version of Weather Watcher,
the wallpaper for the maps no longer fits the entire
image on screen. I always have the National Surface Map
as my wallpaper and now, all I can see is the center of
the country. The rest is off screen. I tried both
the Stretch setting and Center. Neither setting will
allow me to fill the screen with the complete national
map, all I get is the central states as a subset of the
whole map. What gives?