I have recently bought a new WD world book 2Tb wireless back up drive, i was wondering how to set it up with time machine as every time i try to select it as a hard drive it says an unknown error occurred or that it is incompatible, i have tried various passwords and usernames on various forums, with no luck, do i need to update the firmware on the drive, if so, where from as this really isn't obvious from their website as there are about 3 different places you can register your device, none of them useful as far as i can see.
thanks in advance
thanks in advance