i have the same setup (7670m + 8650g) and i wanted to try the firepro driver. i had the same problem as you did: but once I deleted the files, my PC WOULDNT WAKE UP. it took me 2 hours to move the files back from a backup i created using CMD to the original folder, just the get the windows to boot. now i also have the firepro drivers installed, but i don't really see any difference from the crimson 16.2.1 beta. what was the point of this? should i see some improvments? and to anyone else - proceed with caution!