Hello all, I just flashed a Sapphire 4870 1GB video card successfully, only... 1- Quartz Extreme is not Supported 2- No screen saver, screen goes black when on screen saver 3- VCL player has no video 4- Screen flickering in Maya and slow in Mudbox 5- no VGA only DVi (both ports working) etc, etc... I'm hoping this is all due to Quartz Extreme not supported. I read there is the QE_CI issue with the 4890 and exotic 4870 card that have a patch. But can''t find anything for the 4870. I'm running on mac pro 3.1 (2008), on OS X Leopard 10.5.8, only because Maya has bugs on Snow Leopard. Does anyone have any ideas on how to get Quartz Extreme supported? Could it be the ROM I used to flash? ROM Revision: 113-B7710C-176 EFI Driver Version: 01.00.318 Some help!!