How come the banner atop every page never changes?
The banner changes regularly, about once per week. The problem exists in your computer’s browser. It’s serving up the cached the image file and isn’t updating the page as it should. To flush out your old cache, simply hold down the “Ctrl” key and while the key is still depressed use the mouse to click on the “Refresh” on your browser. See also the browser cache section of the Optimal Web Viewing page for instructions on how to properly set up your browser’s cache.