So I've noticed that there are a few reports scattered about the internet of people having issues using GH/RB instruments, as well as the midi-pro adapter, with RB3.I've had the same problem and finally fixed it tonight with some digging around. You need this (Hermes IOS222/223): http://filetrip.net/file.php?id=9681 and this (IOS 236) to install it: http://www.megaupload.com/?d=04OAP4KC Make sure to install 223 with base 38. That's what will do the trick, at least in my case. Pop it in uloader or cfg, doesn't matter, bring up the game with disk or usb, doesn't matter, change to 223 and you're golden. It seems to me that this particular IOS makes the difference and allows me to sync my controllers. Obviously that statement is totally unscientific but that's the only thing I changed and it suddenly worked. If anybody out there has the same problem and is looking for something to try, I'd be delighted if you could post here with results to set this method in stone a little more.