Missing, offline and failed dynamic simple disk

Hi,

My PC suddenly froze and i had no other choice as to push the Power button. When rebooting, my 120 gig Seagate dynamic simple HDD was gone…no f: drive. In Disk mgt, i found it under Missing, failed and Offline Disk.

My Q: How can i access the data on it as it states that all 120 gig are free which is not the case (100 gig of important data is on it)

Any ideas are welcome…i?m pretty desperate at this stage as i got no backup of my data.

Ariel