Hi everyone. I have this graphics card, a Radeon HIS7950 and for the life of me, I cannot manage to flash the ROM to give me a boot screen. I do need the boot screen because I am multi-booting El Capitan, Sierra and Windows 7 on a 2008 Mac Pro 3,1 (I would like to also add a Linux partition in the future). I have tried several times to flash it using Windows 7 but I keep coming up with various error messages. For the time being I'm back with the old 8800GT, but I would sincerely like to be able to use this card again as I got it for a real bargain off eBay last year. Any and all help will be much appreciated!