I pretty much always scroll by holding down the middle button and pulling down on the Trackpoint.
But somewhat recently I've noticed a new problem -- it seems a number of sites now change pages when the middle button with Trackpoint veers a bit to the left or right.
For example, I'll be scrolling down, and then all of a sudden I'm flying off to other pages (because my pull on the Trackpoint isn't perfectly vertical).
Has anybody else noticed this on certain sites you visit? Is there some setting that might help stop this "page changing" behavior?