chuckebaby
We've all done it by accident. Try turning "Scroll lock" off on your keyboard.
Thanks, but my keyboard doesn't have a scroll lock key. I bought this Logitech wireless keyboard back last September. It has no number lock either, but it has no numeric side (numbers are all on top). The right side has a touch pad instead of numbers. Anyway, something weird just happened. I went back into the project I was previously working on that didn't scroll and suddenly it started scrolling! Computers are so weird sometimes.
JB