I  purchased a dell studio 1537 online and i got it delivered 2 days back . when i initially went to start it up it worked perfectly.but today the screen did not seem to work. On closer inspection when you shine a flash light at the screen you can see the display. i have connected  it up to an external monitor and it works fine. I was terrified and when i  googled i  came to the conclusion that the lcd backlight is dead. i have contacted dell the lady informed me that they are sending me the replacement immediately and gave me the case number and Despatch number.But how can this happen in a brand new laptop...

  kindly tell me what went wrong and what is should do further.