I just got a Powerbook 1400c very recently, and it works fine other than some dead pixels on the screen. Anyways, for now I have Mac OS 8.1 installed on it and I'm trying to run the Mac software rendered version of Quake. For whatever reason every time I try to start it the game hangs at the initial loading screen here it says it's loading all sounds as 8bit. This same copy of the game runs perfectly fine on my beige G3 mini-tower. Any ideas?