I have a year old MacBook Pro with an Nvidea GeForce 8600M GT card. I recently bought Unity but it turns out the Nvidea GeForce 8600M GT graphics card isn't fully supported because of a memory leak which is a problem with the drivers. Unity Support have told me to update my drivers. I understood Mac drivers were always built in to the OS and no drivers were available from Nvidea but I see they now have one Mac driver for another card. What is the actual state of affairs with this graphics card does anyone know? There have been a lot of reports of faulty ones and now this. This is a just about year old top of the range MacBook Pro and it doesn't support graphics??