Just got Halo, Combat Evolved (1.0.2) during the break. But heard that there are updates (1.5?) Is it worth upgrading? I have a 15.4 PB, 1.5 Ghz, 2 gig ram, 128 VRAM. Is it worth upgrade to 1.5? Or should I upgrade to 1.0.3? Sorry if this thread has been posted before.