10.4.3 🙂
Well, after a bit of hassle I did a complete re-install of Tiger because I don't think my original installation from months ago, was very good (for some reason, i could not turn on AFP sharing).
So, I did a fresh install, then the combo update (109mb) then my CS2 apps, then Front Row.
Front Row is the interesting part, it performs BETTER than it used to. When watching a download episode of Lost it would drop frames all over the place, now it seems to not have a hint of dropping frames. This is on a Powerbook 12" (see below). This has been the best gem I have found so far with 10.4.3.