I bought a stock 2.4 GHz aluminum MacBook in October and it's been great. However, I have a specific problem. When I play the game, Vendetta Online, it freezes. It usually takes about an hour of play, but the entire computer will lock up. Occasionally, it will give me a kernel panic, but most of the time it is a complete freeze without any messages at all. The only way to get out of it is to do a hard restart by holding the power button. At first, I thought it may be related to CPU temperature because the game makes the computer run hot, but I tried using SMC fan control to keep the temperature below 70c at all times, and it still freezes. I don't remember it ever doing this before, but for the last few weeks it now seems to do it every time if I keep the game running long enough. Sometimes it will only take a minute and sometimes it will take an hour or two. Since it's a complete freeze, I don't get any sort of crash log either (as far as I know). I tried reinstalling the game and it still does it. I was excited when the new MacBooks had a better GPU, but now it seems like it was for nothing because I can't take advantage of it with the one game I really like to play. Any ideas about why it may be doing this? Any possible fixes? Can anyone else test to see if it does the same thing on their new MacBook? Thanks in advance.