Currently Being ModeratedMay 22, 2012 11:20 AM (in response to Rebeccaogun)
It sounds like maybe the laptop suffered a hard hit somehow and the HD is not being read. Sound like a trip to the Apple store would help diagnose this further.
Currently Being ModeratedMay 22, 2012 11:25 AM (in response to Rebeccaogun)
The lid was opened and something was dropped on it is my guess.
You'll have to take it in, user damage is not covered by AppleCare/warranty.