I recently installed Macrium Reflect and created a disk image on an external hard drive that is connected to a SATA PCI card. Everything went smoothly and I tested the boot CD for Macrium Reflect. I did not go as far as restoring the disk image. I want to have a disk image created on a weekly schedule, so I want to leave the external SATA drive connected. When I boot the computer, I get an error message GRUB error 22 and the computer stops there. If I disconnect the external SATA drive, the computer boots normally into Windows XP Professional. How can I leave the external SATA drive connected and still have the computer boot normally?