I have a Dell Studio 540 Core 2 quad that came with a WD Caviar Blue 640 MB drive. I added a WD Caviar Green 2 TB drive using the old WD data lifeguard tools with no problem. Now the data lifeguard tools crashes at startup and I was told to use the new Acronis software. I downloade Acronis and installed it. It searched through my drives and told me that I have no WD drives installed and shut down. I even tried plugging in my WD external 2 TB drive on its USB 3.0 plug and that made no difference, so I made a bootable disc and the CD DOES recognize all my WD drives even though the standard software does not. Any ideas?