I have a external hard drive from WD - it's called "My Passport".
Since now I have used it on a Windows computer.
With the preinstalled software called "WD SmartWare" I have set a password for it.
In Ubuntu 12.04LTS I tried to unlock the hard drive, but a error massage occured.
Then, I tried to install the WD SmartWare for Windows with Wine.
This didn't work too.

How can I unlock the hard drive?
Is there a software for it? (I have only found Mac and Windows versions)
Or has anyone another idea to solve this problem?

Thank you very much for your answers!
Greetings from Germany,