Can anyone help me? I recently bought Quake 4 on my late 2011 macbook pro 13". It works fine but the graphics look bad. There's no shading or shadows. The graphics look quite flat and there's no smoothness in the graphics. I've even chosen different graphics settings, but it still looks bad. I have Doom 3 which works fine, but for some reason Quake 4 looks bad. Does anyone have any ideas why this is happening?