You should configure it to wait a second or two, instead of instantly disappearing. It happened whenever I moved the scrollwheel as far as I could, and then mov

You should configure it to wait a second or two, instead of instantly disappearing. It happened whenever I moved the scrollwheel as far as I could, and then moved my finger to the other side of the wheel to continue scrolling. Note that scrolling once and waiting causes the roll to stay up for a short while before fading out. Scrolling a lot and waiting causes the roll to almost-instantly disappear, when I expect the same delay as the first case I described.