I've seen a couple of posts lately that this is a good route to go if you want dual mini-display port to drive a pair of recent Apple Cinema Displays. I have a 2009 mac pro. I'd like to keep the boot screen, so this means flashing. But I only have my Mac Pro... no Windows PC. I've seen a couple of reports but it seemed like a painful trial-and-error exercise. Is there a clear and easy way to flash an XFX 6870 like this one, without a lot of hassle? Are there any issues? I read somewhere you only get boot screens on one of the DVI outputs... is that true? If so, not worth it for me. I need boot screen on MDP ports. What else do you give up by flashing a 6870? Thanks!