Some models of the newest Apple computers will only boot in OS X. It is not possible to choose OS 9 as a startup system, and Pro Tools 5 will not work with OS X "Classic Mode". It is not possible to have a dual boot system with Pro Tools 6 and Pro Tools 5 on these latest 2003 systems that will only boot in OS X.

2003 OS X Only Models

* Single Processor 1 GHz Power Mac G4
* Dual Processor 1.25 GHz Power Mac G4
* Dual Processor 1.42 GHz Power Mac G4
* 867 MHz PowerBook G4 (12" screen)
* 867 MHz PowerBook G4 (15" screen)
* 1 GHz PowerBook G4 (15" screen)
* 1 GHz PowerBook G4 (17" screen)
* 800 MHz G4 iMac (15" screen)
* 1 GHz G4 iMac (17" screen)