Thanks very much for the reply.
1) It’s the old one, version 3.02.
2) It was a fresh install, as the Mac is new. I’ve tried deleting and resinstalling a couple of times.
3) OS X 10.6.4 – I have the original disk
4) It’s a Mac Pro
I’ve realized that the Mac came installed with a server OS. I am unfamiliar with Macs, but it seems this could be causing a problem.