I just acquired a PowerBook G4 (Ti) 867MHz a few days ago, the computer itself is working fine with Tiger or Leopard. I'm trying to get Mac OS 9.2.2 running on this computer, but didn't get any luck at all. I did some online search on this issue, it seems there's no retail CD of Mac OS 9.2.2 could ever boot on this computer. The only solution to get this computer running with Mac OS 9.2.2 is to use the system restore DVD came with the computer itself. I have called AppleCare too, but the man said they're not providing system restore DVDs for such an old computer either. I'm wondering if there's anyone willing to sell this DVD to me, or maybe share a copy with me. That would be greatly appreciated. The compatible DVD version should be 691-4060 or 691-4316. These two are the only two PowerBook G4 restore DVDs I want.