I have about the same problem. I downloaded the firmware and flashed my DVD, however, when I change DVD+R to DVD-R ROM, and select apply, its immideately reverted to DVD+R again, and I loose one of the valuable changes permited. And, the things I didnt want to change, DVD+RW and DVD+R DL are now reverted to DVD-R ROM, and wont change either. As soon as i accept the changes, they revert to DVD-R ROM again. Also, I've tried just clicking DVD-R as standard and closing the window, it doesnt help. And in IMGBURN the same happens, I chose DVD+R new setting DVD-R ROM, it reverts to the original "Set new setting" and here the change counter doesnt even work.
Im on a VISTA 32bit, if thats any help. The firmware didn't seem to have different versions for different OS so I assume that doesnt matter, but still.
How do I fix this? I ahve tried to install both RPC1 and Original. pressrocks you got this working, please help