I am mostly a PC guy, but I have a Macbook Pro from I think 2010 which I use for audio and video editing.
It does this weird thing where the cursor on the screen jumps around, pauses, etc. So the cursor on the screen moves erratically. It jumps around, gets stuck and simply does not work well. Recently, when this happens, videos played on my VLC player and other players skips and pause. Sometimes, after a few weeks or few boots, the problem goes away for awhile then comes back.
Can anyone suggest where I would even start to try and fix or problem solve this?