I've never seen Tiger on CDs, actually. Only on DVDs. You certain that your 533 G4 has a capable drive for the discs you're using? Eric Am 11.07.2007 um 23:51 schrieb David Minger NPG Cable: > Hi, > > I've got a whole range of Macs from 68K up through G5s. I have 2 > G4s (a 450 and a 533). I've been able to keep the 450 updated to > the latest OS X, but the 533 is stuck a couple of feline animals > into the past. For whatever reason it will not handle the upgrade > CDs that the 450 handles just fine. > > The 533 OS is therefore getting more and more out of date. > > Any ideas on what the problem is and how to fix? > > Best, > David > > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4 > > Listmom is trying to clean out his closets! Vintage Mac and random > stuff: > http://search.ebay.com/_W0QQsassZmacguy1984 >