well I cannot really comment on your install as I don't do the PPC thing!.
I must ask you though, how did you install your system, via a disk or USB install and did you follow this advice? (I know you are smart enough to know this but I must ask anyway!):
Other than what I have already told you, I'm out of ideas if your terminal is not working; I have nothing except a complete fresh install to offer you!.
