Computer issue, can anyone help?

That's Wild !!!
I had the same problem but it only happened in Mozilla Firefox my primary browser.I could open up internet explorer and it scrolled fine.
It was driving me nuts !!!It only happens on my laptop at home.I did so many things I could not tell you what fixed it,it was as the page was not loading correctly,even though it was all there but 3/4 the way down scrolling it would stop and if you clicked just above the browser arrow down it proceed to the bottom....Weird.