I was just experimenting with the new smoke simulation stuff and something's happened. It seems that blender is only rendering things that are in the camera's view when in Solid Mode. What's even weirder is that it's seems to be from a location that the camera isn't in.
It's also displaying very strange in Material Mode as well (The plane just has a basic grey material but half of it ghosts as I move the camera around)
Have I pressed something without realising it or is this actually a bug? It's hard to tell since blender has crashed so many times while trying to make an explosion.