DVD version here, game ran like silk from start to end.
Agree the air segments sucked badly, but the rest of the game was cool.....more an interactive story than a game.
The 'bayonet the bastards' option was cool too.
I do vaguely recall something about vertical sync settings when combined with AI/AA filtering causing probs. Sorry , can't be more specific, was a while ago, i dont even have it installed anymore.