Im installing a 120Gb Sata 2 harddrive in my girlfriends rig and for some reason i cant seem to get the system to see it. I have it set to slave since the other harddrive is set to master, i have the Sata power and data cables connected but still Windows 7 64bit ultimate and even the Bios refuses to see it. Know its not the drive as it works fine in my own rig i have checked. It shows up fine in my bios. Can anyone help please?