I purchased 2 chromebooks last year within a week of each other. This year, within a week of each other both had the screen spontaneously crack, blanking out the upper left corner and producing pixelated lines through the balance of the screen. I have read a number of online posts where the same thing has happened to many others. This seems to be an issue with the product. How do I go about having acer replace the system or screen on my 2 investments. We were very pleased with the product and company until this happened. Now 2 systems are completely down in my house. Thank you in advance for your help in this matter.