I'm currently setting up a fresh install of OS X leopard on my PowerMac and everything is working fine. But I noticed I have audio coming from both the rear audio out and from the front I/O simultaneously. But to my knowledge this shouldn't be possible do to the way the hardware is set up. Really confusing me a lot. G5 still runs just fine, just that weird audio problem.
PS I got Final Cut running just fine, turned out I just forgot to install the extra packages
PS I got Final Cut running just fine, turned out I just forgot to install the extra packages