No, the Mac doesn't compile, but I am 99.99999% sure that is "my issue" vs a ufo:ai issue. About a year ago I ran some program for cleaning languages and PPC binaries off my mac, and it caused Rosetta to break. I really need to just re-install the OS to get it fixed, but I am lazy and I know that when I install Leopard it will fix the issue, so I keep pushing it off until Leopard comes out.