With 12.3 installed, when installing 12.6 it says that the Driver is already up to date. Unless the driver hasn't changed since 12.3, this can't be correct. The install shows the driver to be installed as 8.951.0.000 and CCC shows the current 2D driver as 8.01.01.1235, although Device Manager shows the current driver as 8.951.0.000. All the other components were updated properly but even after rebooting, CCC still shows 12.3. I'm using onboard HD3300 IGP.