Hey i installed windows 7 RC1 on a iMac 2009 with the 4850. For the most part windows did a good job recognizing all my hardware and installing the appropriate drivers ( I did have to install sound driver ). My problem is every time i try boot camp from the Leopard DVD i get a BSOD and the drivers wont install so I am missing out on certain drivers like the keyboard special function keys. In order to get the keyboard to work properly for volume keys brightness keys etc which driver can i install manually from the leopard dvd?