Quoting schattenjaeger, reply 2
Hmm, I'll check. I don't use the 3D map anymore; having a city in the frame causes my graphics card to make an odd ticking noise (like what you get if you clip a playing card in a bicycle wheel and spin it, only not as loud).
Sounds like the fan of your graphics card isn't spinning fast enough. I had the same problem with the fan of my CPU-cooler recently. It was set to automatic before, but was going too slow occasionally, making this odd ticking noise. Setting the fan to a constant speed fixed it.
I'll look into that, but are you seriously suggesting the 3D map is underutilizing the gfx card more than, say, my desktop?
3D map mode in this game is *the only* time it does that.
Still, I'll look into that.