While you wait for answers, we may have found some information which could help you.
Click here for Inspiron Work LaptopMy laptop is showing it is not connected to the network, but it is?
Dell latitude c400 intermitent lines on screen?
How to fix dell Inspiron 5040 laptop windows 7?
Right Click pad on my Lap top does not work, can this be fixed?
dell inspiron 5040 plugged in not charging?
how to repair my blank screen?