I baught a FW400 drive enclosure and wacked in an 80gb hard disk so I could boot my PBG4 from it when I'm at my desk. The box says Mac compatible, and i can copy files to and from it. Only thing is that it wont let me boot from it. Ive installed MAC OS X sev times from the Install cd's (Retail but also restore DVD's), done a carbon copy clone, blessed system folders, but it still wont boot. It shows up as a startup disk in the system prefs, and i select and lock to it, but come bootup time, it wont work. I also tried repairing permissions and playing with the jumper settings on the drive. Still the MAC OS "can't find disk" icon flashes if i try booting from it, holding down option on boot the drive wont even show up as a bootable volume. I'm at a loss here. The drive cage is a Zynet Polar. I think it uses the Genesys Logic chipset. Anyone have any hacks, firmware or ideas to make this thing boot? Its driving me nuts!