I also installed the Vista Service Pack 1 yesterday and it was soooo long. I went out to play basketball for about half an hour and came back, still installing. Nevermind the installing time, it's still a good improvement.
Anyone that has an Intel Core 2 Duo 2.20 GHz with 2GB RAM and 8700GT or 8600GT/GTS will able to run this game at MEDIUM with 1024x764 with a little lag.
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