Ok, so I have Vista 64 bit and a WD Book World Edition I (1 TB), and yes the vista backup utility worked! What happened was the WD drive keeps a default login and password and if you can't figure it out when you point to where you want to backup your vista files to, then you get the error message. But I read somewhere what those defaults were and it worked! However, I messed up when i added my wife's laptop and gave her a separate folder...now i have to re-direct vista backup and i can't remember what the default username and password are...it's not the same one you use to access the drive and it's not "guest" and "password"
