Not sure exactly what you've done, but I can only see about 1/2 inch (left-to-right) of a screen and see no difference in the red cirled area, which I assume is where you're experiencing a problem.
You need to attach a screen shot, if you can, or barring that, give a better descrition of your problem. We also need to know what version/service pack of Access you're running as well as your OS.
Version 2003, I believe, is noted to experience display problems with Tabbed Pages when running Windows XP. If this version/OS matches your situation, you might try right-clicking your Windows XP desktop, choosing Properties, and setting the theme to Windows Classic and see if that resolves it.
Linq ;0)>