My trusty old intellimouse is not playing the game on Leopard. I can't map the scroll wheel for use in 3D apps which is why I HAVE the scroll wheel. Trying to get any help from Microsoft is an excercize in futility, I'm supposed to get 2 free support incidents but I haven't had one yet and when I put in my product number Microsoft immediately demand £46 UK pounds. (about $100 US). So much for free support. I think the intellipoint software hasn't been updated, that's what I think. Does anyone know? Thanks.