So after eagerly awaiting the new beta driver release I download, uninstall, reboot, clean, reboot and finally install after disabling AVG.
The PC boots and I go to load a game.. BSOD! :/ atikmpag.sys error... Again.
I ask a friend, he says try updating the driver through windows 7 64 to see if its corrupt, and windows comes back with the second card shown as an R200 class.
Now that seems wierd to me. Perhaps you AMD chaps can figure it out...
Anyhow hope you sort it out.