I'm noticing a fairly high CPU usage when playing Avernum 6, or at least higher than I would have expected. I have a 2GHz core2 duo iMac and CPU usage consistently hovers around 50%, even when I'm not playing and the game is just sitting there. Anyone else noticing this? I will say that I'm really enjoying the new chapter. My family isn't too thrilled through since I spend so much time in the office now.