I just installed Halo on my computer and noticed within the first couple minutes that I could see through walls! I thought maybe it was an unresolved issue with the first release so I installed the latest patch (1.04) and got no change. Sure, it's nice and all to see enemies coming through doors, but it eats a hell of a lot of CPU and GPU power. I thought maybe it was my video card (Radeon 8500LE 128mb) but it never did this with the Halo demo. I'm running the Catalyst 4.3 version, but I can't upgrade to the 4.5s due to a monitor incompatability that ATI won't resolve (arrogant bastards). Any ideas?