Primary Hard Disk Drive 0 Not Found (Hellllllllllpppppppppp)

Hey guys,

 

This morning, i went to my main desk, lifted my laptop and tried to place it on my second desk. During this process, i heard the kind of sound u hear when u move a laptop that has a CD in its CD-ROM drive. You know the spinning sound. But i didnt have a CD in my laptop at the time. When i looked at the screen, it was black. I pressed my power button for 4 seconds and restarted but when it booted, i saw this error message:

 

Primary Harddisk drive 0 Nor found error. Press F1 to Retry reboot or F2 to setup.

 

Pressing F1 doesnt make any difference. Pressing F2 takes me to Bios. In the BIOS, the Primary Disk Drive says "None". What can be done to solve this? I have extremely important data on this disk.

 

The properties of my system are:

 

Dell Latitude D800

Hitachi 40GB Hard Disk.

 

Hope to hear something soon.