I recently switched from PC to Mac, and I had my old 200GB drive sitting around. I formatted it to NTFS and stuck it into a USB 2.0 external enclosure, but my PowerBook won't recognize the drive at all. I've tried two different drives, and nothing. The unit powers up, and I've tried USB cables I know work with it, but still nothing. Am I forgetting something? Do I need to reformat the drive as FAT32 or something for the Mac to see it? The case came with drivers, but only USB 1.1 Mac drivers for Sys 9, and I'm on X, so it's not much of a help. Any advice?