I have the 9400m and it runs ok, not like on the husbands computer but playable. Except in multiplayer, which I assume is another problem (I'm not hosting). The graphics take ages to load and it can be a bit jumpy and sometimes I get red and white checks on some tiles. Single player I haven't had any probs yet. Bit annoying that it's not catered for to be honest, seeing as my computer (MacBook Pro) isn't even 1 yr old yet. And it doesn't actually tell you that the card isn't supported til you've already associated the disc key with your steam account permanently...