I can't 2 finger scroll using trackpad in Word since I upgraded to Yosemite I can't scroll using trackpad in Word since I upgraded to Yosemite.  I'm on a MacBook Pro.  It seems fine in all other areas, just in Word.  I have to go to the sidebar and drag it up and down to scroll.  Ideas?
You literally need to restart your computer, that should solve the problem. It did for me :)