I plug it into the USB port and it works just fine for a minute or two, then stops working. I can wait a few minutes and it'll work, again only for a minute or two, and then stop again. The little light doesn't come on, which tells me either there's no power going to it or it's just a dead mouse. I can plug it into another port and get the same results. Sometimes switching ports doesn't do anything, and sometimes I'll get a little power for a couple of minutes.
Does this sound more like an issue with the mouse, or like my laptop is having problems?