Hello, Looking for some advice really from anyone on the forum. I've got a 15 inch Late 2013 MacBook Pro which is out of warranty, in November 2015 I tried to update to 10.11 and was unable to install this, resulting in various error codes numerous times. I took it into the Apple Store and the Genius dude confirmed there was an issue when he attempted to install via store server but the issue was still present. As a gesture of goodwill, they said that they would fix this at no cost to me. The work they did replaced the Board, Logic, 2.3GHz, Discrete GPU, 16GB RAM. (Essentially a new MacBook Pro, right?). Was very happy with this, as this would have cost £409.20. On Sunday, I was browsing the web when my screen went black all of a sudden. I closed the screen, opened it up again and then everything on the screen was frozen. I pressed the power button to switch off and try again. Started up the MacBook Pro and the load up screen started but then lines appeared (picture attached). After about 6 hours of trying to reinstall OS X via cmd + R, I finally managed to reinstall OS X. This appeared to have solved the screen issue so I started reinstalling all my data however after a 2/3 minutes the laptop crashed. In total it crashed around 8 or 9 times before I finally gave up and was no longer able to install OS X via cmd + R. On Monday I took it into Apple Store and spoke with a Genius, he said there may be an issue with the graphics card in the MacBook Pro and they needed to stress test this to figure out what the issue actually is. He gave me a sheet with the work what will be done to fix it and again it's replacing the Board, Logic, 2.3GHz, Discrete GPU, 16GB RAM at a cost of £409.20. This MacBook Pro is just over 2 years old, purchased on 30th January 2014. I've still got my late 2008 model which is 8 years old and works perfectly. Do I just have bad luck with this newer model? What are the chances of Apple replacing the unit with a new one, or am I just being greedy thinking that could happen?