By the way, I too long often notice FW drives missing when holding option. Sometimes if you disconnect it, refresh with r key, reboot and plug it in or plug it back in before reboot it will show up. The diskette with ? means I think that it loads the ROM and stuff, so it knows about the System, but the OS 9 drivers are missing, or partition is too big to boot off. You say you have checked both these, so see if you can format it from an installed system on your internal with Drive Setup, and not Drive Setup whilst being booted off the CD.