Q: Sometimes the cursor disappears from the screen of my five-year-old MacBook Air laptop. If I open and close the "lid" of the laptop, the cursor eventually reappears. What's wrong? Does it ...

A few tweaks in Windows’ settings can ensure your computer’s mouse pointer stays visible, so you’re not left chasing a ghost on your screen.

Usually when the cursor jumps around without reason, it's caused by the user accidentally hitting the mouse touchpad.