This may happen if you use too small of a screen resolution, or if your header graphic is too wide (for example, if it takes up 100% of the screen's width).
Try placing the banner in the sidebar of your blog. Just go under "Widgets" and drag and drop the Auto Azon Banner widget in your sidebar.
If the banner is shown in the sidebar of one of your pages, it will not appear a second time on the far right of the screen.
Article ID: 83
Category: Auto Azon Banner