Little by little I'm learning. I let a friend install wireless in my computer.
I didn't see a great improvement except that the mouse moved more easily.
Then a couple of days ago my cursor stuck and wouldn't move at all. Well
after much angst I learned that the mouse has a AA battery. The battery had died.
I had no idea there was a battery in there. I changed it and it worked fine. I'm almost a computer tech. LOL