Thanks to Microsoft's Windows Feedback Panel program, I scored myself a free copy of Windows Vista Ultimate. Since I love Windows XP Pro so much, I refuse to format my computer's existing internal SATA drive, and there isn't enough room on there to dual boot from it. My idea is to install Vista Ultimate to a WD My Book Studio Edition drive, which has a huge array of inputs: USB 2.0, FireWire 400 and 800, and eSATA. My computer won't boot from FireWire 400 (and isn't equipped with 800), and the Vista installer won't install to a USB-connected disk, so I'm left with eSATA. Once I got the drive running, I immediately formatted the drive with an extended partition and a single logical drive, which the installer didn't like. After noting the message below the drive list in the installer, I reformatted the drive with a single primary (if that's what it's called) partition. The installer complained about that too. I tried repartitoning the drive in the installer, to no avail. At this point, I know that the drive is physically connected properly, and otherwise working. Is there some secret to partitioning the drive? How does one go about doing a clean install on a blank drive?