I'm encountering some problem using RBE to change the device id from 9598 to 9596. Most manufacturers use 9596 to designate the AGP version of this card while my card (Powercolor) uses the PCIe id of 9598. I need the 9596 id to use certain driver files in a Mac install. My method to this point has been to use a backup stock bios taken from my card and using RBE to do a hash dump and changing 98 to 96 in both id locations, save the bios and flash back to my card. Everything goes fine until the reboot with no display. I can blind flash the card back to original and it works. I'm just not certain if I'm doing everything I need to change this id and make it work. Any ideas?