So i sent my macbook in a couple of weeks ago because i had a discoloration at the palmrests and my trackpad wasnt so responsive. The local service center took over a week to replace the palmrests. I took the macbook home and started playing around on it, until i realised that the back of the screen had a huge number of deep scratches in it. I also noticed that my trackpad was still slightly unresponsive. I called the a/s center and they said they would have a look at it and discuss what to do about it. Right now I'm in the middle of a holiday period so I'm planning to send my macbook in once it ends. Has anyone else experienced this, and if so, what did apple do about it?