Hello Kev, you are doing a wonderful job, better job than the driver coders @ ATi. Anyways.. I've updated to your last Hybrid release, because when I updated the 12.xx Final, Diablo3 profile is missing and the audio .inf too. So rollback and tried the final Hybrid. The main issue I've encountered with the Hybrid final is the AA its not working in Diablo3 All the other similar engines (Torchlight 1 and 2) are fine. Best regards friend, PS: I use the following method to clean Catalyst installation: Uninstall via Control Panel > Reboot Safe Mode > Run AMD Tool > Reboot Safe Mode > Uninstall via Device Manager and delete MS Driver > Run AMD Catalyst TwL Cleaner v3.9.2 > Check Hardware > Reboot.