Let me start off by saying that Ive searched the site and read through many threads regarding how to downgrade software, Ive tried everything & nothing works. So please don't bite my head off with sarcastic remarks. Ive tried the basic; copying 1.8 to a freshly formatted sd card, nothing happens, no downgrade. Then i read that some people on Macs have issues (I'm on a Mac,) so i used my office pc to copy the 1.8 onto an sd card, took it home, nothing happens. Then i tried holding the red button behind the nose during power-up, releasing button to FORCE UPDATE (with transmitter off obv., nothing happens.) For reference I'm on a Pro Black edition. Any thoughts or suggestions would be greatly appreciated.