Q3.9.3: Moving the scrollbar can move the point; can I disable this?

When I move the scrollbar in a SXEmacs window, it moves the point as well, which should not be the default behavior. Is this a bug or a feature? Can I disable it?

The current behavior is a feature, not a bug. Point remains at the same buffer position as long as that position does not scroll off the screen. In that event, point will end up in either the upper-left or lower-left hand corner.

This cannot be changed.