Okay, so I bought a refurbished laptop. It's a Sony Vaio and the trackpad/mouse gradually stops working every use. I don't have any clue why. If it comes to a stop, I either have to deal with using the touchscreen or end up shutting it down and turning it back on. If I just hit the restart button however, my mouse will still not work. Please Help! I have no clue why this is happening. Also if I plug in an external mouse once it has stopped, it will continue to work.