Hi guys, I have bought two Retina Macbook Pro's with dGpu and both have lg. My colors are fine however i am experiencing horizontal lines on both of the displays. My screen model number is LP154WT1-SJE1 (LG)(A019). So my question to you is, What is the spec of your rMBP and what is your fifth and sixth digit of your serial number? What is your screen model number? Thank you.