I am using track details too, but I got curious after the comment and tried scrolling again. And what do you know, it is a lot better than last night now. Last night the <down> key scrolled down about a whole page or more at once every second or two, today it scrolls fine, but becomes slightly hesitant every one or two seconds. A big difference. And what did I do? I Slept. I wish all my problems resolved this way! ;-D