I have just installed v5 on my Intel Macbook Pro with 10.5.3, and in the DSP Status window (4.5 and 4.6 also reside on this machine), I just get Input Channels and Output Channels as 0, despite setting up I/O mappings and the actual 1 Output/2 Output etc in the Channel boxes below.
I have tried trashing the preferences.
I just tried sticking v5 on my Tiger PPC, and it works exactly as expected.
I cannot see any other such references elsewhere on the forums- has anyone got any ideas?
PS do these I/Os have anything to do with Java? My Java has been under attack from a wretched badly coded app called Viewletbuilder which seems to corrupt it, necessitating an OS reinstall, which naturally, I am not very happy to repeat too often!