this product was fantastic - - great build quality , screen resolution , keyboard - - until one day it stopped turning on .####[['product', 'LAPTOP#GENERAL', 'positive'], ['build quality', 'LAPTOP#QUALITY', 'positive'], ['screen resolution', 'DISPLAY#GENERAL', 'positive'], ['keyboard', 'KEYBOARD#GENERAL', 'positive'], ['NULL', 'LAPTOP#OPERATION_PERFORMANCE', 'negative']]