I've installed a Liteon LTR-52327S CD-RW drive (jumpered as Master) in a CoolMax Enclosure (CD-509-Combo, USB2+IEEE 1394). Panther system profiler recognizes the enclosure as either a USB or Firewire device, but fails to recognize the drive. It never appears on Desktop or in any app (e.g.,iPhoto). This model drive is listed in the system DeviceSupport.drprofile. The drive/enclosure works fine as USB device on Windows 98SE machine, so hardware is OK. Patchburn II does not recognize the external drive (only the internal DVD-RAM). It's a supported drive, all the hardware works on a Windows machine, the MAC recognizes the enclosure. So why not the drive???? Suggestions greatly appreciated!