your gfx is under spec. the minimum required is a gts 240 you only have a 210 which although similar in some respects doesnt have the required shader count and or some of the higher end hardware required for gaming. getting a 240/96gt will likely allow you to play at minimum on single player only but multiplayer will require a slightly better 250/98gt/3870
i think you're wrong 'cause the demo worked fine and "can you run it" says it's passing the minimum.
BTW i run win. 7 32bit