Yesterday I was working on my MBP (13") for quite a while having the CPU to operate at high power where the ventilator was spinning intensively. Not sure if this piece of information is necessary or connected with my problem, but maybe it is. At some point, my trackpad got completely unresponsive and I could not use it anymore. I had to restart my laptop after which the trackpad started, partially, working again. The problem that I am experiencing at the moment is that 70/80% of the track from the top, is not working properly. There is lag in the movement of my mouse cursor and it is not responding correctly to the movement of my finger. The bottom 20/30% seems to be working fine though. Today the problem persists, so it seems not like something temporary. Are there any solutions that I could (easily) try to solve this problem? Or is this a sign of permanent damage?