Youse are a useless lot. I remember posting once about the trouble R and I had had with the laptop where after we plugged the mouse into it, we started having problems when typing. The text would jump around sometimes, going back of forth and doing other things. It took yonks for me to work out the problem. We were accidentally touching the pad with our palms or our wrists.
Once we were aware of the problem, we tried not to touch the pad, but it is hard not to. I was fiddling the other day with the laptop, wondering what it was so beastly slow when it has been used so little. The buttons that do extra things, such turn on/off, volume control, hard drive activity etc have some pretty indecipherable symbols. What does this one do? Oh, a blue light has come on at the pad. Wow, the pad is isolated and won't work, and none of you told me about the existence of such a button.
An acronym that has appeared in print and suddenly is everywhere is most appropriate here. RTFM. Read The Manual......ah, missing letter. Let me think. Ohhhhhhh. Yes, very much RTFM.
I overheard a conversation the other day about lap tops and mouse from someone about forty. She was asking someone to get her a mouse to plug into her new laptop. As I suggested, and she agreed, young people are quite happy with just using the pad of laptop, but older people like to have a mouse.