I recently acquired a Ati Radeon Hd 5770 card flashed for mac but in the system it show up as a Radeon HD 5000. Been trying to find a way to flash it to 5770 mac but cannot find anything that seems to work. Would anybody have any suggestions? I tried Zeus but even with the rom it shows that either the same file is on the card or the card is incompatible with Zeus. Oh, and I don't own any pc's so I can't flash that way.