When you use the Scroll Bar in Word 97, to page a document, the screen does not update until you release the mouse button.
To implement Live scrolling, use Regedt32 to navigate to:
On the Edit menu, Add Value name LiveScrolling as a type REG_SZ and set the string value to 1.
Exit any open Word 97 instance.
Now, when you scroll in Word 97, the screen will update as you move the Scroll Bar.