While you wait for answers, we may have found some information which could help you.
Click here for Lap Top Not FixedDell latitude c400 intermitent lines on screen?
How to fix dell Inspiron 5040 laptop windows 7?
device driver downloads for Dell Latitude E6400 PCI Port & PCI Controller?
My laptop is showing it is not connected to the network, but it is?
how to repair my blank screen?
dell inspiron 5040 plugged in not charging?