I just found out that you should really do this at least once a week.
More often if you spend a lot of time on computer! (Like me)
I was shocked to see how off mine was.
First you must test your scrolling ability.
Now to recalibrate your mouse or touchpad:
First, click and hold on the S.
Then drag the S toward the e.
If it doesn’t work, you might want to clean your mouse or touchpad.
Stop wasting time on the computer and
go do something constructive
Hey, and let me know how your results come out.