PowerBook G4 Performance Probable solution
As other in the forum I have found impossible to play the demo songs included in reason 3.0 with my PowerBook G4 1.33 due to the performance of the CPU.
I have found the solution:
Just open "Energy Saver" in the preferences and set Optimize Energy Settings to "Highest Performance".
Now the CPU performance of my Mac is doubled, and I can play every single demo song without problems. This is true also for other application and all the system.
It seems that the "Automatic" default setting in the preferences don't boost PowerBook performance UP, also if you have your power cable inserted.
Hope this can help some other here,
sorry for my terrible english,