hi i have a hp elitebook 8730w and the screen got cracked so i got a replacement and that screen worked for about a month and then the backlight seems to not always work so i got in contact with the people who changed it and they replaced it and now 3 months later this screen is starting to not always work. can see whats on the screen if u hold light against it but thats about it. and cant efford to replace the screen again. help me please anyone on what i should do