Ok, so I start the first level (underground), I get to the first cutscene (where the two soldiers are talkin), the game is running perfect and smooth. I sneek past the guard, get to a door, open the door and theres a little computer device with a face on it on a crate and it starts talkin to you. Now, the scene freezes, but you can still hear the characters talkin, then when the talkin has finished, the cutscene carries on. when the scene is finished and your back to playing, the game has slowed right down, and reacts REAL slow. If you want to walk foreward you have to hold the arrow key down and it'll respond after like 3 minutes, and when the character does walk foreward he doesn't flow, he shunts. My computer more than meets whats neede to play the game.