On Saturday, Jan 31, 2004, at 08:59 Canada/Eastern, enterprise wrote: > Is it possible that the later version of OS X (10.2.7) somehow > _disables_ > the use of OS 9 for booting? No. > I've just purchased a nearly-new iMac G4/800Mhz; [...] I cannot boot > up in OS 9 > (I have tried shutdown and restart etc). It may be that OS 9 was not correctly installed; but not all G4s support booting from OS 9. First of all, check your new iMac's specs and make sure it does support OS 9 boot. f