So I have my 6870 working, but of course Steam games won't work for it. Searched around the netkas site and found this http://netkas.org/?p=798 Thing is it says "MacPro users this will not work, for macpro bios of 6870 need to be embeded into Info.plist of aty_init." and I have not been able to find anything that tells me how to do that. I know how to get to the info.plist, but the instructions are really vague that I don't know what to do from there. Can somebody please help me out and let me know, or point me to something that tells me, precisely what I need to do to get Steam running on my machine?