no mouse balls, it laser, not wireless so no battery I think. Will try another port. I suspect it's windows 10, didn't have this problem till after up grade.

also, when typing, it sometimes slow to respond skipping letters whn (example) I type (makes me look dumber than I am:024::22yikes:). But, may be the site I'm on due to all the adware/spyware that's down loaded in the background that the antivirus has to sort through. Just going on line and hear get 180 up adware downloads hidden in the back ground snooping where I was surfing before. I also my have something to do with the amount of traffic on site, heavy users IMO equals slow response?? This morning good example SLOOOOOOOOOOOOOOW to respond!