[SPOILER ALERT] [SPOILER ALERT] [SPOILER ALERT]
There are way too many npcs and this is what is causing at least some of the graphics and stuttering problems. They overshot it when Ubisoft tried to overpopulate France. It was bad, but it wasn't this bad and it's only causing a lot of problems. They should halve the amount of npcs in the game, and then it would be a bit more realistic, not to mention that it would help a lot with the stuttering and other graphic problems many of us are having.
To dbgager:: You may well be right about the sales and the bottom line. Gamers in general seem not to want to use common sense or wait until some reviews are in.. I am feeling more and more smug and pleased that I have not bought either Unity or the latest Far Cry (I liked Far Cry 1 and 2, but I believe they may not run on Win 7). So despite owning the so called "mega PC" I am not going to feed Ubisoft for lousy programming and lousy PC support. Even AC3 has more bugs than a rain forest..