Or could it be the case of the strange aurora surrounding Kelso?

It happened to my wife. She complained the mouse pointer was all over the screen and didn't go where she was trying to point. I stood behind her and saw that the mouse behaviour was erratic but when I used the mouse to try to see what the problem was the mouse worked correctly. She takes over the mouse and the erratic behaviour returns.

We tried a couple of wireless mice I had lying around. They would work for a while and then start the same problem.

Finally the last option I had for her, a Logitech Wireless Mouse and keyboard combination, seemed to work OK and she has not had a problem since. Strange and we still can not understand what happened.

Kevin