trikz

I have encountered the same problem. My kaser Vault 120gb. When it oots up the blue light at the back jus flashes a few ties an then stop. everytime i go to acces the vault the blue libghts starts to clik again. it says all my files are their but i have no acces to them. ay idea what i should do? i have alot of filez probably 80gb of importat files on it. i would hate to lose it. please help