I don't think that is entirely correct. I have a Quicksilver 2002, and I still have OS 9.2.2 on it. It has Firewire ports. I can boot it into OS 9. BTW, I have it souped up with a Mercury CPU accelerator (I think 1.3 GHz, but I did it last year, and I forget whether it is 1.3 or 1.4) from OWC (MacSales.com). Runs just fine. --Steve At 10:45 AM -0400 5/18/06, Daniel Brieck Jr. wrote: >I believe that the general rule of thumb is that any G4 that does not have a FireWire 800 port can run mac os 9.