try zapping the PRAM. 9.0 will boot for sure. tony On Sunday, February 2, 2003, at 07:51 AM, Kenneth Strain wrote: > I want to to a system install of OS 9.0 onto a firewire drive that > will end > up in my cube, and it says I have to boot from the CD. Try as I might, > despite switching to the Mac OS All set of extensions, turning off > Techtool > System Protection, and following instructions, my computer refuses to > boot > from the CD when I hold down "C". Is OS 9.0 incompatible with the > Cube? > > -Ken